10,000,000

10,000,000 (ten million) is the natural number following 9,999,999 and preceding 10,000,001.

This article is about the number. For the article on the baseball player, see Ten Million. For the article on the 2012 video game, see 10000000 (video game).
10000000
CardinalTen million
Ordinal10000000th
(ten millionth)
Factorization27 · 57
Greek numeral
Roman numeralX
Greek prefixhebdo-
Binary1001100010010110100000002
Ternary2002110011021013
Octal461132008
Duodecimal342305412
Hexadecimal98968016

In scientific notation, it is written as 107.

In South Asia, it is known as the crore.

In Cyrillic numerals, it is known as the vran (вран - raven).

Selected 8-digit numbers (10,000,001–99,999,999)

10,000,001 to 19,999,999
  • 10,000,019 – smallest 8-digit prime number
  • 10,001,628 – smallest triangular number with 8 digits and the 4,472nd triangular number
  • 10,077,696 = 69
  • 10,609,137 – Leyland number
  • 11,111,111 – repunit
  • 11,390,625 = 156
  • 11,436,171 – Keith number[1]
  • 11,485,154 – Markov number
  • 11,881,376 = 265
  • 12,252,240 – highly composite number, smallest number divisible by all the numbers 1 through 18
  • 12,890,625 – 1-automorphic number[2]
  • 12,960,000 = 604, (3·4·5)4, Plato's "nuptial number" (Republic VIII; see regular number)
  • 12,648,430 – hexadecimal C0FFEE, resembling the word "coffee"; used as a placeholder in computer programming, see hexspeak.
  • 12,988,816 – number of different ways of covering an 8-by-8 square with 32 1-by-2 dominoes
  • 13,782,649 – Markov number
  • 14,348,907 = 315
  • 14,352,282 – Leyland number
  • 14,930,352 – Fibonacci number[3]
  • 15,485,863 – 1,000,000th prime number
  • 15,994,428 – Pell number[4]
  • 16,609,837 – Markov number
  • 16,769,023 – Carol prime[5] and an emirp
  • 16,777,216 = 224 – hexadecimal "million" (0x1000000), number of possible colors in 24/32-bit Truecolor computer graphics
  • 16,777,792 – Leyland number
  • 16,785,407 – Kynea number[6]
  • 16,797,952 – Leyland number
  • 16,964,653 – Markov number
  • 17,016,602 – index of a prime Woodall number
  • 17,210,368 = 285
  • 17,650,828 = 11 + 22 + 33 + 44 + 55 + 66 + 77 + 88
  • 18,199,284 – Motzkin number[7]
  • 19,487,171 = 117
  • 19,680,277 – Wedderburn-Etherington number[8]
  • 19,987,816 – palindromic in 3 consecutive bases: 41AAA1413, 292429214, 1B4C4B115

20,000,000 to 29,999,999

30,000,000 to 39,999,999

40,000,000 to 49,999,999
  • 40,353,607 = 79
  • 43,046,721 = 316
  • 43,050,817 – Leyland number
  • 43,112,609 – Mersenne prime exponent
  • 43,443,858 – palindromic in 3 consecutive bases: 3C323C315, 296E69216, 1DA2AD117
  • 43,484,701 – Markov number
  • 44,121,607 – Keith number[1]
  • 44,444,444 – repdigit
  • 45,136,576 – Leyland number
  • 45,435,424 = 345
  • 46,026,618 – Wedderburn-Etherington number[8]
  • 46,656,000 = 3603
  • 47,045,881 = 196
  • 48,828,125 = 511
  • 48,928,105 – Markov number
  • 48,989,176 – Leyland number

50,000,000 to 59,999,999
  • 50,852,019 – Motzkin number[7]
  • 52,521,875 = 355
  • 55,555,555 – repdigit

60,000,000 to 69,999,999
  • 60,466,176 – 610
  • 61,466,176 – Leyland number
  • 62,748,517 = 137
  • 63,245,986 – Fibonacci number, Markov number
  • 64,000,000 = 206 – vigesimal "million" (1 alau in Mayan, 1 poaltzonxiquipilli in Nahuatl)
  • 66,600,049 - Largest minimal prime in base 10
  • 66,666,666 – repdigit
  • 67,092,479 – Carol number[15]
  • 67,108,864 = 226
  • 67,109,540 – Leyland number
  • 67,125,247 – Kynea number[6]
  • 67,137,425 – Leyland number
  • 69,343,957 = 375

70,000,000 to 79,999,999
  • 72,546,283 – the smallest prime number preceded and followed by prime gaps of over 100[16]
  • 73,939,133 – the largest prime number that can be 'tailed' again and again by removing its last digit to produce only primes
  • 74,207,281 – Mersenne prime exponent
  • 77,777,777 – repdigit
  • 78,442,645 – Markov number
  • 79,235,168 = 385

80,000,000 to 89,999,999

90,000,000 to 99,999,999
  • 90,224,199 = 395
  • 93,222,358 – Pell number[4]
  • 94,418,953 – Markov number
  • 99,991,011 – largest triangular number with 8 digits and the 14,141st triangular number
  • 99,999,989 – greatest prime number with 8 digits[18]
  • 99,999,999 – repdigit, Friedman number, believed to be smallest number to be both repdigit and Friedman

See also

References
  1. "Sloane's A007629 : Repfigit (REPetitive FIbonacci-like diGIT) numbers (or Keith numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
  2. Sloane, N. J. A. (ed.). "Sequence A003226 (Automorphic numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2019-04-06.
  3. "Sloane's A000045 : Fibonacci numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
  4. "Sloane's A000129 : Pell numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
  5. "Sloane's A091516 : Primes of the form 4^n - 2^(n+1) - 1". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
  6. "Sloane's A093069 : a(n) = (2^n + 1)^2 - 2". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
  7. "Sloane's A001006 : Motzkin numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
  8. "Sloane's A001190 : Wedderburn-Etherington numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
  9. "Sloane's A004490 : Colossally abundant numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
  10. "Sloane's A002201 : Superior highly composite numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
  11. "Sloane's A000110 : Bell numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
  12. "Sloane's A000396 : Perfect numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
  13. "Sloane's A005165 : Alternating factorials". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
  14. "Sloane's A088054 : Factorial primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
  15. "Sloane's A093112 : a(n) = (2^n-1)^2 - 2". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
  16. Sloane, N. J. A. (ed.). "Sequence A023188 (Lonely (or isolated) primes: least prime of distance n from nearest prime (n = 1 or even).)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2019-01-27.
  17. "Sloane's A011541 : Taxicab, taxi-cab or Hardy-Ramanujan numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
  18. "greatest prime number with 8 digits". Wolfram Alpha. Retrieved June 4, 2014.
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