21016996

Names of 21016996

• Cardinal: 21016996 can be written as Twenty-one million, sixteen thousand, nine hundred ninety-six.

Scientific notation

• Scientific notation: 2.1016996 × 10⁷

Factors of 21016996

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 243

Divisors of 21016996

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 11 13 14 22 26 28 29 44 52 58 77 91 116 143 154 181 182 203 286 308 319 362 364 377 406 572 638 724 754 812 1001 1267 1276 1508 1991 2002 2233 2353 2534 2639 3982 4004 4147 4466 4706 5068 5249 5278 7964 8294 8932 9412 10498 10556 13937 16471 16588 20996 25883 27874 29029 32942 36743 51766 55748 57739 58058 65884 68237 73486 103532 115478 116116 136474 146972 181181 230956 272948 362362 404173 477659 724724 750607 808346 955318 1501214 1616692 1910636 3002428 5254249 10508498 21016996
• Sum of all divisors σ(n): 51367680
• Sum of proper divisors (its aliquot sum) s(n): 30350684
• 21016996 is an abundant number, because the sum of its proper divisors (30350684) is greater than itself. Its abundance is 9333688

Bases of 21016996

• Binary: 1010000001011000110100100₂
• Hexadecimal: 0x140B1A4
• Base-36: CIGTG

Squares and roots of 21016996

• 21016996 squared (21016996²) is 441714120864016
• 21016996 cubed (21016996³) is 9283503911342540815936
• The square root of 21016996 is 4584.4297355287
• The cube root of 21016996 is 275.9668272111

Scales and comparisons

• 21,016,996 seconds is equal to 34 weeks, 5 days, 6 hours, 3 minutes, 16 seconds.
• To count from 1 to 21,016,996 would take you about twenty-one hours!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 21016996 cubic inches would be around 23 feet tall.

Recreational maths with 21016996

• 21016996 backwards is 69961012
• The number of decimal digits it has is: 8
• The sum of 21016996's digits is 34
• More coming soon!