31421047968

Names of 31421047968

• Cardinal: 31421047968 can be written as Thirty-one billion, four hundred twenty-one million, forty-seven thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 3.1421047968 × 10¹⁰

Factors of 31421047968

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2304

Divisors of 31421047968

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 131 144 262 288 393 499 524 786 998 1048 1179 1497 1572 1669 1996 2096 2358 2994 3144 3338 3992 4192 4491 4716 5007 5988 6288 6676 7984 8982 9432 10014 11976 12576 13352 15021 15968 17964 18864 20028 23952 26704 30042 35928 37728 40056 47904 53408 60084 65369 71856 80112 120168 130738 143712 160224 196107 218639 240336 261476 392214 437278 480672 522952 588321 655917 784428 832831 874556 1045904 1176642 1311834 1568856 1665662 1749112 1967751 2091808 2353284 2498493 2623668 3137712 3331324 3498224 3935502 4706568 4996986 5247336 6275424 6662648 6996448 7495479 7871004 9413136 9993972 10494672 13325296 14990958 15742008 18826272 19987944 20989344 26650592 29981916 31484016 39975888 59963832 62968032 79951776 109100861 119927664 218201722 239855328 327302583 436403444 654605166 872806888 981907749 1309210332 1745613776 1963815498 2618420664 3491227552 3927630996 5236841328 7855261992 10473682656 15710523984 31421047968
• Sum of all divisors σ(n): 90270180000
• Sum of proper divisors (its aliquot sum) s(n): 58849132032
• 31421047968 is an abundant number, because the sum of its proper divisors (58849132032) is greater than itself. Its abundance is 27428084064

Bases of 31421047968

• Binary: 11101010000110101110010010010100000₂
• Hexadecimal: 0x750D724A0
• Base-36: EFNA3S0

Squares and roots of 31421047968

• 31421047968 squared (31421047968²) is 987282255407356929024
• 31421047968 cubed (31421047968³) is 31021443105109789446960275423232
• The square root of 31421047968 is 177259.8317950235
• The cube root of 31421047968 is 3155.5390229189

Scales and comparisons

• 31,421,047,968 seconds is equal to 999 years, 4 weeks, 5 days, 12 hours, 52 minutes, 48 seconds.
• To count from 1 to 31,421,047,968 would take you about one thousand, nine hundred ninety-eight 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 31421047968 cubic inches would be around 263 feet tall.

Recreational maths with 31421047968

• 31421047968 backwards is 86974012413
• The number of decimal digits it has is: 11
• The sum of 31421047968's digits is 45
• More coming soon!