31397608431

Names of 31397608431

• Cardinal: 31397608431 can be written as Thirty-one billion, three hundred ninety-seven million, six hundred eight thousand, four hundred thirty-one.

Scientific notation

• Scientific notation: 3.1397608431 × 10¹⁰

Factors of 31397608431

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3261

Divisors of 31397608431

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 17 21 49 51 63 119 147 153 197 343 357 441 591 833 1029 1071 1379 1773 2499 3037 3087 3349 4137 5831 7497 9111 9653 10047 12411 17493 21259 23443 27333 28959 30141 51629 52479 63777 67571 70329 86877 148813 154887 164101 191331 202713 210987 361403 446439 464661 492303 598289 608139 1041691 1084209 1148707 1339317 1476909 1794867 2529821 3125073 3252627 3446121 4188023 5384601 7589463 9375219 10170913 10338363 12564069 17708747 22768389 29316161 30512739 37692207 53126241 71196391 87948483 91538217 159378723 205213127 213589173 263845449 498374737 615639381 640767519 1495124211 1846918143 3488623159 4485372633 10465869477 31397608431
• Sum of all divisors σ(n): 56302646400
• Sum of proper divisors (its aliquot sum) s(n): 24905037969
• 31397608431 is a deficient number, because the sum of its proper divisors (24905037969) is less than itself. Its deficiency is 6492570462

Bases of 31397608431

• Binary: 11101001111011100010111101111101111₂
• Hexadecimal: 0x74F717BEF
• Base-36: EF9BPPR

Squares and roots of 31397608431

• 31397608431 squared (31397608431²) is 985809815186402281761
• 31397608431 cubed (31397608431³) is 30952070564659136118376811126991
• The square root of 31397608431 is 177193.7031358621
• The cube root of 31397608431 is 3154.7541692605

Scales and comparisons

• 31,397,608,431 seconds is equal to 998 years, 18 weeks, 5 hours, 53 minutes, 51 seconds.
• To count from 1 to 31,397,608,431 would take you about one thousand, nine hundred ninety-six 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 31397608431 cubic inches would be around 262.9 feet tall.

Recreational maths with 31397608431

• 31397608431 backwards is 13480679313
• The number of decimal digits it has is: 11
• The sum of 31397608431's digits is 45
• More coming soon!