Natural number
100,000 (one hundred thousand ) is the natural number following 99,999 and preceding 100,001. In scientific notation , it is written as 105 .
Terms for 100,000
In India , Pakistan and South Asia , one hundred thousand is called a lakh , and is written as 1,00,000 . The Thai , Lao , Khmer and Vietnamese languages also have separate words for this number: แสน ແສນ សែន saen ), and ức Malagasy word is hetsy [1]
In Cyrillic numerals , it is known as the legion (легион ):
or .
Values of 100,000
In astronomy , 100,000 metres , 100 kilometres , or 100 km (62 miles) is the altitude at which the Fédération Aéronautique Internationale (FAI) defines spaceflight to begin.
In the Irish language , céad míle fáilte pronounced [ˌceːd̪ˠ ˈmʲiːlʲə ˈfˠaːlʲtʲə]
Selected 6-digit numbers (100,001–999,999)
100,001 to 199,999
100,001 to 199,999
100,003 = smallest 6-digit prime number[2] 100,128 = smallest triangular number with 6 digits and the 447th triangular number100,151 = twin prime with 100,153100,153 = twin prime with 100,151100,255 = Friedman number [3] 101,101 = smallest palindromic Carmichael number 101,723 = smallest prime number whose square is a pandigital number containing each digit from 0 to 9102,564 = The smallest parasitic number 103,049 = little Schroeder number 103,680 = highly totient number [4] 103,769 = the number of combinatorial types of 5-dimensional parallelohedra 103,823 = 473 , nice Friedman number (−1 + 0 + 3×8×2)3 104,480 = number of non-isomorphic set-systems of weight 14.104,723 = the 9,999th prime number104,729 = the 10,000th prime number104,869 = the smallest prime number containing every non-prime digit104,976 = 184 , 3-smooth number105,071 = number of triangle-free graphs on 11 vertices[5] 105,664 = harmonic divisor number [6] 109,376 = 1-automorphic number [7] 110,880 = highly composite number [8] 111,111 = repunit 111,777 = smallest natural number requiring 17 syllables in American English, 19 in British English113,634 = Motzkin number for n = 14[9] 114,243 /80,782 ≈ √2 114,689 = prime factor of F 12 115,975 = Bell number [10] 116,281 = 3412 , square number , centered decagonal number , 18-gonal number117,067 = first vampire prime 117,649 = 76 117,800 = harmonic divisor number[6] 120,284 = Keith number [11] 120,960 = highly totient number[4] 121,393 = Fibonacci number [12] 124,000 = number of Islamic prophets125,673 = logarithmic number[13] 127,777 = smallest natural number requiring 18 syllables in American English, 20 in British English127,912 = Wedderburn–Etherington number [14] 128,981 = Starts the first prime gap sequence of 2, 4, 6, 8, 10, 12, 14129,106 = Keith number[11] 130,321 = 194 131,071 = Mersenne prime [15] 131,072 = 217 131,361 = Leyland number [16] 134,340 = Pluto 's minor planet designation135,137 = Markov number [17] 142,129 = 3772 , square number , dodecagonal number 142,857 Kaprekar number , smallest cyclic number in decimal .144,000 147,640 = Keith number[11] 148,149 = Kaprekar number[18] 152,381 = unique prime in base 20 156,146 = Keith number[11] 160,000 = 204 161,051 = 115 161,280 = highly totient number[4] 166,320 = highly composite number[8] 167,400 = harmonic divisor number[6] 167,894 = number of ways to partition {1,2,3,4,5,6,7,8} and then partition each cell (block) into subcells.[19] 173,600 = harmonic divisor number[6] 174,680 = Keith number[11] 174,763 = Wagstaff prime [20] 177,147 = 311 177,777 = smallest natural number requiring 19 syllables in American English, 21 in British English178,478 = Leyland number[16] 181,440 = highly totient number[4] 181,819 = Kaprekar number[18] 183,186 = Keith number[11] 183,231 = number of partially ordered set with 9 unlabeled elements[21] 187,110 = Kaprekar number[18] 194,481 = 214 195,025 = Pell number ,[22] [17] 196,418 = Fibonacci number,[12] [17] 196,560 = the kissing number in 24 dimensions196,883 = the dimension of the smallest nontrivial irreducible representation of the Monster group 196,884 = the coefficient of q in the Fourier series expansion of the j-invariant . The adjacency of 196883 and 196884 was important in suggesting monstrous moonshine .199,999 = prime number.
200,000 to 299,999
202,717 = k such that the sum of the squares of the first k primes is divisible by k.[23] 206,098 – Large Schröder number 206,265 = rounded number of arc seconds in a radian (see also parsec ), since 180 × 60 × 60 / π 207,360 = highly totient number[4] 208,012 = the Catalan number C 12 [24] 208,335 = the largest number to be both triangular and square pyramidal 208,495 = Kaprekar number[18] 212,159 = smallest unprimeable number ending in 1, 3, 7 or 9[25] [26] 221,760 = highly composite number[8] 222,222 = repdigit 227,475 = Riordan number 234,256 = 224 237,510 = harmonic divisor number[6] 238,591 = number of free 13-ominoes241,920 = highly totient number[4] 242,060 = harmonic divisor number[6] 248,832 = 100,00012 , AKA a gross-great-gross (10012 great-grosses);125 , the smallest fifth power that can be represented as the sum of only 6 fifth powers: 125 = 45 + 55 + 65 + 75 + 95 + 115 262,144 = 218 ; exponential factorial of 4;[27] superperfect number [28] 262,468 = Leyland number[16] 268,705 = Leyland number[16] 274,177 = prime factor of the Fermat number F 6 275,807 /195,025 ≈ √2 277,200 = highly composite number[8] 279,841 = 234 279,936 = 67 280,859 = a prime number whose square 78881777881 is tridigital293,547 = Wedderburn–Etherington number[14] 294,001 = smallest weakly prime number in base 10[29] 294,685 = Markov number[17] 298,320 = Keith number[11]
300,000 to 399,999
310,572 = Motzkin number[9] 317,811 = Fibonacci number[12] 318,682 = Kaprekar number[18] 325,878 = Fine number[30] 326,981 = alternating factorial [31] 329,967 = Kaprekar number[18] 331,776 = 244 332,640 = highly composite number;[8] [6] 333,333 = repdigit333,667 = sexy prime and unique prime [32] 333,673 = sexy prime with 333,679333,679 = sexy prime with 333,673337,500 = 22 × 33 × 55 351,351 = only known odd abundant number that is not the sum of some of its proper, nontrivial (i.e. >1) divisors (sequence A122036 OEIS ).351,352 = Kaprekar number[18] 355,419 = Keith number[11] 356,643 = Kaprekar number[18] 360,360 = harmonic divisor number;[6] 362,880 = 9!, highly totient number[4] 370,261 = first prime followed by a prime gap of over 100371,293 = 135 , palindromic in base 12 (15AA5112 )389,305 = self-descriptive number in base 7390,313 = Kaprekar number[18] 390,625 = 58 397,585 = Leyland number[16]
400,000 to 499,999
409,113 = sum of the first nine factorials 422,481 = smallest number whose fourth power is the sum of three smaller fourth powers423,393 = Leyland number[16] 426,389 = Markov number[17] 426,569 = cyclic number in base 12 437,760 to 440,319 = Apple II+ and Apple IIe computers to crash to a monitor prompt when entered at the BASIC prompt, due to a short-cut in the Applesoft code programming of the overflow test when evaluating 16-bit numbers.[33] 440000 at the prompt has been used to hack games that are protected against entering commands at the prompt after the game is loaded.444,444 = repdigit456,976 = 264 461,539 = Kaprekar number[18] 466,830 = Kaprekar number[18] 470,832 = Pell number[22] 483,840 = highly totient number[4] 498,960 = highly composite number[8] 499,393 = Markov number[17] 499,500 = Kaprekar number[18]
500,000 to 599,999
500,500 = Kaprekar number,[18] 509,203 = Riesel number [34] 510,510 = the product of the first seven prime numbers, thus the seventh primorial .[35] Fibonacci numbers —13, 21, 34, 55, the highest such sequence of any length to be also a primorial. And it is a double triangular number , the sum of all even numbers from 0 to 1428.514,229 = Fibonacci prime ,[36] Markov prime [17] 518,859 = little Schroeder number 524,287 = Mersenne prime[15] 524,288 = 219 524,649 = Leyland number[16] 525,600 = minutes in a non-leap year527,040 = minutes in a leap year531,441 = 312 533,169 = Leyland number[16] 533,170 = Kaprekar number[18] 537,824 = 145 539,400 = harmonic divisor number[6] 548,834 = equal to the sum of the sixth powers of its digits554,400 = highly composite number[8] 555,555 = repdigit599,999 = prime number.
600,000 to 699,999
604,800 = number of seconds in a week614,656 = 284 625,992 = Riordan number 646,018 = Markov number[17] 664,579 = the amount of primes under 10,000,000 there are665,280 = highly composite number[8] 665,857 /470,832 ≈ √2 666,666 = repdigit676,157 = Wedderburn–Etherington number[14] 678,570 = Bell number[10] 694,280 = Keith number[11] 695,520 = harmonic divisor number[6]
700,000 to 799,999
700,001 = prime number.707,281 = 294 720,720 = superior highly composite number ;[37] colossally abundant number ;[38] 725,760 = highly totient number[4] 726,180 = harmonic divisor number[6] 729,000 = 903 739,397 = largest prime that is both right- and left-truncatable .742,900 = Catalan number[24] 753,480 = harmonic divisor number[6] 759,375 = 155 765,623 = emirp , Friedman prime 56 × 72 − 6 ÷ 3777,777 = repdigit, smallest natural number requiring 20 syllables in American English, 22 in British English, largest number in English not containing the letter 'i' in its name799,999 = prime number.
800,000 to 899,999
810,000 = 304 823,543 = 77 825,265 = smallest Carmichael number with 5 prime factors832,040 = Fibonacci number[12] 853,467 = Motzkin number[9] 857,375 = 953 873,612 = 11 + 22 + 33 + 44 + 55 + 66 + 77 888,888 = repdigit890,625 = 1-automorphic number [7]
900,000 to 999,999
"999999" redirects here. For the string of nines in pi, see Six nines in pi .
900,001 = prime number901,971 = number of free 14-ominoes909,091 = unique prime in base 10923,521 = 314 925,765 = Markov number [17] 925,993 = Keith number [11] 950,976 = harmonic divisor number [6] 967,680 = highly totient number [4] 998,001 = the reciprocal of this number, in its expanded form, lists all three-digit numbers in order except 998.[39] 998,991 = highest triangular number with 6 digits and the 1,413th triangular number999,983 = largest 6-digit prime number999,999 = repdigit. Rational numbers with denominators 7 and 13 have 6-digit repetends when expressed in decimal form, because 999999 is the smallest number one less than a power of 10 that is divisible by 7 and by 13, largest number in English not containing the letter 'l' in its name.
Prime numbers
Increments of 105 from zero through a million have the following prime counts:
9,592 primes between 0 and 100,000.99,991 is the largest prime number less than 100,000. 8,392 primes between 100,000 and 200,000.[a] This is a difference of 1,200 primes from the previous range.
104,729 is the 10,000th prime in this range.
199,999 is prime. 8,013 primes between 200,000 and 300,000.[b] A difference of 379 primes from the previous range.
224,737 is the 20,000th prime. 7,863 primes between 300,000 and 400,000.[c] A difference of 150 primes from the previous range.
350,377 is the 30,000th prime. 7,678 primes between 400,000 and 500,000.[d] A difference of 185 primes from the previous range.
Here, the difference increases by a count of 35 .
479,909 is the 40,000th prime. 7,560 primes between 500,000 and 600,000.[e] A difference of 118 primes from the previous range.
7,560 is the twentieth highly composite number .[40] 599,999 is prime. 7,445 primes between 600,000 and 700,000.[f] A difference of 115 primes from the previous range.
611,953 is the 50,000th prime. 7,408 primes between 700,000 and 800,000.[g] A difference of 37 primes from the previous range.
700,001 and 799,999 are both prime.
746,773 is the 60,000th prime. 7,323 primes between 800,000 and 900,000.[h] A difference of 85 primes from the previous range.
Here, the difference increases by a count of 48 .
882,377 is the 70,000th prime. A difference of 99 primes from the previous range.
The difference increases again, by a count of 14 .
900,001 is prime. In total, there are 68,906 prime numbers between 100,000 and 1,000,000.[41]
