21372539916

Names of 21372539916

• Cardinal: 21372539916 can be written as Twenty-one billion, three hundred seventy-two million, five hundred thirty-nine thousand, nine hundred sixteen.

Scientific notation

• Scientific notation: 2.1372539916 × 10¹⁰

Factors of 21372539916

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1395

Divisors of 21372539916

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 7 12 13 14 21 26 28 39 42 43 49 52 78 84 86 91 98 129 147 156 172 182 196 258 273 294 301 343 364 516 546 559 588 602 637 686 903 1029 1092 1118 1204 1274 1327 1372 1677 1806 1911 2058 2107 2236 2401 2548 2654 3354 3612 3822 3913 3981 4116 4214 4459 4802 5308 6321 6708 7203 7644 7826 7962 8428 8918 9289 9604 11739 12642 13377 14406 14749 15652 15924 17251 17836 18578 23478 25284 26754 27391 27867 28812 29498 31213 34502 37156 44247 46956 51753 53508 54782 55734 57061 58996 62426 65023 69004 82173 88494 93639 103243 103506 109564 111468 114122 120757 124852 130046 164346 171183 176988 187278 191737 195069 206486 207012 228244 241514 260092 309729 328692 342366 362271 374556 383474 390138 399427 412972 455161 483028 575211 619458 684732 724542 741793 766948 780276 798854 845299 910322 1150422 1198281 1238916 1342159 1365483 1449084 1483586 1597708 1690598 1820644 2225379 2300844 2396562 2535897 2684318 2730966 2795989 2967172 3186127 3381196 4026477 4450758 4793124 5071794 5192551 5368636 5461932 5591978 5917093 6372254 8052954 8387967 8901516 9558381 10143588 10385102 11183956 11834186 12744508 15577653 16105908 16775934 17751279 19116762 19571923 20770204 23668372 31155306 33551868 35502558 36347857 38233524 39143846 41419651 58715769 62310612 71005116 72695714 78287692 82839302 109043571 117431538 124258953 137003461 145391428 165678604 218087142 234863076 248517906 254434999 274006922 411010383 436174284 497035812 508869998 548013844 763304997 822020766 1017739996 1526609994 1644041532 1781044993 3053219988 3562089986 5343134979 7124179972 10686269958 21372539916
• Sum of all divisors σ(n): 64157868544
• Sum of proper divisors (its aliquot sum) s(n): 42785328628
• 21372539916 is an abundant number, because the sum of its proper divisors (42785328628) is greater than itself. Its abundance is 21412788712

Bases of 21372539916

• Binary: 10011111001111001110001010000001100₂
• Hexadecimal: 0x4F9E7140C
• Base-36: 9TGNPCC

Squares and roots of 21372539916

• 21372539916 squared (21372539916²) is 456785462461013287056
• 21372539916 cubed (21372539916³) is 9762665529496526071410726127296
• The square root of 21372539916 is 146193.5016202841
• The cube root of 21372539916 is 2775.1430780217

Scales and comparisons

• 21,372,539,916 seconds is equal to 679 years, 30 weeks, 1 day, 8 hours, 38 minutes, 36 seconds.
• To count from 1 to 21,372,539,916 would take you about one thousand, three hundred fifty-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 21372539916 cubic inches would be around 231.3 feet tall.

Recreational maths with 21372539916

• 21372539916 backwards is 61993527312
• The number of decimal digits it has is: 11
• The sum of 21372539916's digits is 48
• More coming soon!