21372817997908

Names of 21372817997908

• Cardinal: 21372817997908 can be written as Twenty-one trillion, three hundred seventy-two billion, eight hundred seventeen million, nine hundred ninety-seven thousand, nine hundred eight.

Scientific notation

• Scientific notation: 2.1372817997908 × 10¹³

Factors of 21372817997908

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 337926

Divisors of 21372817997908

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 13 26 31 52 62 124 403 806 1612 45319 90638 181276 292561 585122 589147 1170244 1178294 1404889 2356588 2809778 3803293 5619556 7606586 9069391 15213172 18138782 18263557 36277564 36527114 73054228 117902083 235804166 471608332 13258571959 26517143918 53034287836 172361435467 344722870934 411015730729 689445741868 822031461458 1644062922916 5343204499477 10686408998954 21372817997908
• Sum of all divisors σ(n): 41579941258240
• Sum of proper divisors (its aliquot sum) s(n): 20207123260332
• 21372817997908 is a deficient number, because the sum of its proper divisors (20207123260332) is less than itself. Its deficiency is 1165694737576

Bases of 21372817997908

• Binary: 100110111000000111111001110011000000001010100₂
• Hexadecimal: 0x13703F398054
• Base-36: 7KQJC07YS

Squares and roots of 21372817997908

• 21372817997908 squared (21372817997908²) is 456797349171700129492376464
• 21372817997908 cubed (21372817997908³) is 9763046605773577563749797881657500437312
• The square root of 21372817997908 is 4623074.5178839591
• The cube root of 21372817997908 is 27751.5511392915

Scales and comparisons

• 21,372,817,997,908 seconds is equal to 679,589 years, 26 weeks, 16 hours, 18 minutes, 28 seconds.
• To count from 1 to 21,372,817,997,908 would take you about one million, six hundred ninety-eight thousand, nine hundred seventy-three years!

  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 21372817997908 cubic inches would be around 2312.6 feet tall.

Recreational maths with 21372817997908

• 21372817997908 backwards is 80979971827312
• The number of decimal digits it has is: 14
• The sum of 21372817997908's digits is 73
• More coming soon!