31439972928

Names of 31439972928

• Cardinal: 31439972928 can be written as Thirty-one billion, four hundred thirty-nine million, nine hundred seventy-two thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 3.1439972928 × 10¹⁰

Factors of 31439972928

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 43955

Divisors of 31439972928

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 32 39 41 42 48 52 56 64 78 82 84 91 96 104 112 123 156 164 168 182 192 208 224 246 273 287 312 328 336 364 416 448 492 533 546 574 624 656 672 728 832 861 984 1066 1092 1148 1248 1312 1344 1456 1599 1722 1968 2132 2184 2296 2496 2624 2912 3198 3444 3731 3936 4264 4368 4592 5824 6396 6888 7462 7872 8528 8736 9184 11193 12792 13776 14924 17056 17472 18368 22386 25584 27552 29848 34112 43889 44772 51168 55104 59696 87778 89544 102336 119392 131667 175556 179088 238784 263334 307223 351112 358176 526668 570557 614446 702224 716352 921669 1053336 1141114 1228892 1404448 1711671 1799449 1843338 2106672 2282228 2457784 2808896 3423342 3598898 3686676 3993899 4213344 4564456 4915568 5398347 6846684 7197796 7373352 7987798 8426688 9128912 9831136 10796694 11981697 12596143 13693368 14395592 14746704 15975596 18257824 19662272 21593388 23392837 23963394 25192286 27386736 28791184 29493408 31951192 36515648 37788429 43186776 46785674 47926788 50384572 54773472 57582368 58986816 63902384 70178511 75576858 86373552 93571348 95853576 100769144 109546944 115164736 127804768 140357022 151153716 163749859 172747104 187142696 191707152 201538288 255609536 280714044 302307432 327499718 345494208 374285392 383414304 403076576 491249577 561428088 604614864 654999436 748570784 766828608 806153152 982499154 1122856176 1209229728 1309998872 1497141568 1964998308 2245712352 2418459456 2619997744 3929996616 4491424704 5239995488 7859993232 10479990976 15719986464 31439972928
• Sum of all divisors σ(n): 104880948480
• Sum of proper divisors (its aliquot sum) s(n): 73440975552
• 31439972928 is an abundant number, because the sum of its proper divisors (73440975552) is greater than itself. Its abundance is 42001002624

Bases of 31439972928

• Binary: 11101010001111101111110101001000000₂
• Hexadecimal: 0x751F7EA40
• Base-36: EFYJQDC

Squares and roots of 31439972928

• 31439972928 squared (31439972928²) is 988471897713372893184
• 31439972928 cubed (31439972928³) is 31077529704197228865273995722752
• The square root of 31439972928 is 177313.2057349367
• The cube root of 31439972928 is 3156.1724249231

Scales and comparisons

• 31,439,972,928 seconds is equal to 999 years, 36 weeks, 13 hours, 48 minutes, 48 seconds.
• To count from 1 to 31,439,972,928 would take you about one thousand, nine hundred ninety-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 31439972928 cubic inches would be around 263 feet tall.

Recreational maths with 31439972928

• 31439972928 backwards is 82927993413
• The number of decimal digits it has is: 11
• The sum of 31439972928's digits is 57
• More coming soon!