21684977613

Names of 21684977613

• Cardinal: 21684977613 can be written as Twenty-one billion, six hundred eighty-four million, nine hundred seventy-seven thousand, six hundred thirteen.

Scientific notation

• Scientific notation: 2.1684977613 × 10¹⁰

Factors of 21684977613

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 110

Divisors of 21684977613

• Number of divisors d(n): 132
• Complete list of divisors:
  1 3 9 13 27 39 41 53 81 117 123 159 169 243 351 369 477 507 533 689 729 1053 1107 1431 1521 1599 2067 2173 2187 3159 3321 4293 4563 4797 6201 6519 6561 6929 8957 9477 9963 12879 13689 14391 18603 19557 19683 20787 26871 28249 28431 29889 38637 41067 43173 55809 58671 59049 62361 80613 84747 85293 89667 115911 123201 129519 167427 176013 187083 241839 254241 255879 269001 347733 367237 369603 388557 502281 528039 561249 725517 762723 767637 807003 1043199 1101711 1108809 1165671 1506843 1584117 1683747 2176551 2288169 2421009 3129597 3305133 3326427 3497013 4520529 4752351 5051241 6529653 6864507 9915399 9979281 10491039 13561587 14257053 15153723 19588959 20593521 29746197 31473117 40684761 42771159 45461169 58766877 61780563 89238591 128313477 136383507 176300631 185341689 267715773 409150521 528901893 556025067 803147319 1668075201 2409441957 7228325871 21684977613
• Sum of all divisors σ(n): 36761692212
• Sum of proper divisors (its aliquot sum) s(n): 15076714599
• 21684977613 is a deficient number, because the sum of its proper divisors (15076714599) is less than itself. Its deficiency is 6608263014

Bases of 21684977613

• Binary: 10100001100100001100111111111001101₂
• Hexadecimal: 0x50C867FCD
• Base-36: 9YMOBT9

Squares and roots of 21684977613

• 21684977613 squared (21684977613²) is 470238254076311177769
• 21684977613 cubed (21684977613³) is 10197106012421013883542428285397
• The square root of 21684977613 is 147258.2004949129
• The cube root of 21684977613 is 2788.6006614353

Scales and comparisons

• 21,684,977,613 seconds is equal to 689 years, 26 weeks, 5 days, 12 hours, 53 minutes, 33 seconds.
• To count from 1 to 21,684,977,613 would take you about one thousand, three hundred seventy-nine 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 21684977613 cubic inches would be around 232.4 feet tall.

Recreational maths with 21684977613

• 21684977613 backwards is 31677948612
• The number of decimal digits it has is: 11
• The sum of 21684977613's digits is 54
• More coming soon!