21017050238821

Names of 21017050238821

• Cardinal: 21017050238821 can be written as Twenty-one trillion, seventeen billion, fifty million, two hundred thirty-eight thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 2.1017050238821 × 10¹³

Factors of 21017050238821

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 208

Divisors of 21017050238821

• Number of divisors d(n): 96
• Complete list of divisors:
  1 7 13 37 49 91 151 259 343 481 637 1057 1369 1813 1963 3367 4459 5587 7399 9583 12691 13741 17797 22801 23569 39109 51793 67081 72631 96187 124579 159607 164983 206719 273763 296413 469567 508417 673309 843637 872053 1117249 1447033 1916341 2074891 2687347 3442951 3558919 5905459 6104371 7820743 10129231 10967281 14524237 18811429 24100657 24912433 31214569 41338213 44758363 70904617 76770967 101669659 127389187 131680003 168704599 218501983 289367491 313308541 405789397 537396769 891724309 921760021 1180932193 1529513881 1656059431 2193159787 2840525779 3761777383 4713399919 6242070163 10706597167 11592416017 15352118509 19883680453 32993799433 43694491141 61274198947 81146912119 139185763171 230956596031 428919392629 568028384833 1616696172217 3002435748403 21017050238821
• Sum of all divisors σ(n): 27308550796800
• Sum of proper divisors (its aliquot sum) s(n): 6291500557979
• 21017050238821 is a deficient number, because the sum of its proper divisors (6291500557979) is less than itself. Its deficiency is 14725549680842

Bases of 21017050238821

• Binary: 100110001110101101001110100000100111101100101₂
• Hexadecimal: 0x131D69D04F65
• Base-36: 7G73L2G6D

Squares and roots of 21017050238821

• 21017050238821 squared (21017050238821²) is 441716400741125853135470041
• 21017050238821 cubed (21017050238821³) is 9283575785687431653037247996865140661661
• The square root of 21017050238821 is 4584435.6510721143
• The cube root of 21017050238821 is 27596.7064607803

Scales and comparisons

• 21,017,050,238,821 seconds is equal to 668,277 years, 9 weeks, 5 days, 6 hours, 47 minutes, 1 second.
• To count from 1 to 21,017,050,238,821 would take you about one million, six hundred seventy thousand, six hundred ninety-two 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 21017050238821 cubic inches would be around 2299.7 feet tall.

Recreational maths with 21017050238821

• 21017050238821 backwards is 12883205071012
• The number of decimal digits it has is: 14
• The sum of 21017050238821's digits is 40
• More coming soon!