10,000,000

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
• 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
• 12,960,000 = 60⁴, ⁴, Plato's "nuptial 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
• 15,485,863 – 1,000,000th prime number
• 15,994,428 – Pell number
• 16,609,837 – Markov number
• 16,769,023 – Carol prime and an emirp
• 16,777,216 = 2²⁴ – hexadecimal "million", number of possible colors in 24/32-bit Truecolor computer graphics
• 16,777,792 – Leyland number
• 16,785,407 – Kynea number
• 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
• 19,487,171 = 11⁷
• 19,680,277 – Wedderburn-Etherington number
• 19,987,816 – palindromic in 3 consecutive bases: 41AAA14₁₃, 2924292₁₄, 1B4C4B1₁₅

  20,000,000 to 29,999,999

• 20,031,170 – Markov number
• 20,511,149 = 29⁵
• 21,531,778 – Markov number
• 21,621,600 – colossally abundant number, superior highly composite number
• 22,222,222 – repdigit
• 24,137,569 = 17⁶
• 24,157,817 – Fibonacci number, Markov number
• 24,300,000 = 30⁵
• 24,678,050 – equal to the sum of the eighth powers of its digits
• 27,644,437 – Bell number
• 28,629,151 = 31⁵

  30,000,000 to 39,999,999

• 31,536,000 – standard number of seconds in a non-leap year
• 31,622,400 – standard number of seconds in a leap year
• 33,333,333 – repdigit
• 33,445,755 – Keith number
• 33,550,336 – fifth perfect number
• 33,554,432 = 2²⁵ – Leyland number
• 33,555,057 – Leyland number
• 34,012,224 = 18⁶
• 35,831,808 = 12⁷
• 36,614,981 – alternating factorial
• 38,613,965 – Pell number, Markov number
• 39,088,169 – Fibonacci number
• 39,135,393 = 33⁵
• 39,916,800 = 11!
• 39,916,801 – factorial prime

  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
• 44,444,444 – repdigit
• 45,136,576 – Leyland number
• 45,435,424 = 34⁵
• 46,026,618 – Wedderburn-Etherington number
• 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
• 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"
• 66,600,049 - Largest minimal prime in base 10
• 66,666,666 – repdigit
• 67,092,479 – Carol number
• 67,108,864 = 2²⁶
• 67,109,540 – Leyland number
• 67,125,247 – Kynea number
• 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
• 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

• 85,766,121 – 21⁶
• 86,400,000 – hyperfactorial of 5; 1¹ × 2² × 3³ × 4⁴ × 5⁵
• 87,109,375 – 1-automorphic number
• 87,539,319 – taxicab number
• 88,888,888 – repdigit

  90,000,000 to 99,999,999

• 90,224,199 = 39⁵
• 93,222,358 – Pell number
• 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
• 99,999,999 – repdigit, Friedman number, believed to be smallest number to be both repdigit and Friedman