642631483872

Names of 642631483872

• Cardinal: 642631483872 can be written as Six hundred forty-two billion, six hundred thirty-one million, four hundred eighty-three thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 6.42631483872 × 10¹¹

Factors of 642631483872

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 318765629

Divisors of 642631483872

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 84 96 112 126 144 168 224 252 288 336 504 672 1008 2016 318765617 637531234 956296851 1275062468 1912593702 2231359319 2550124936 2868890553 3825187404 4462718638 5100249872 5737781106 6694077957 7650374808 8925437276 10200499744 11475562212 13388155914 15300749616 17850874552 20082233871 22951124424 26776311828 30601499232 35701749104 40164467742 45902248848 53552623656 71403498208 80328935484 91804497696 107105247312 160657870968 214210494624 321315741936 642631483872
• Sum of all divisors σ(n): 2088552329136
• Sum of proper divisors (its aliquot sum) s(n): 1445920845264
• 642631483872 is an abundant number, because the sum of its proper divisors (1445920845264) is greater than itself. Its abundance is 803289361392

Bases of 642631483872

• Binary: 1001010110011111110100100100000111100000₂
• Hexadecimal: 0x959FD241E0
• Base-36: 877Y6YG0

Squares and roots of 642631483872

• 642631483872 squared (642631483872²) is 412975224063528596112384
• 642631483872 cubed (642631483872³) is 265390881042317063316006300395470848
• The square root of 642631483872 is 801642.9902843285
• The cube root of 642631483872 is 8629.5337759963

Scales and comparisons

• 642,631,483,872 seconds is equal to 20,433 years, 36 weeks, 9 hours, 31 minutes, 12 seconds.
• To count from 1 to 642,631,483,872 would take you about forty thousand, eight hundred sixty-seven 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 642631483872 cubic inches would be around 719.1 feet tall.

Recreational maths with 642631483872

• 642631483872 backwards is 278384136246
• The number of decimal digits it has is: 12
• The sum of 642631483872's digits is 54
• More coming soon!