813665990870836

Names of 813665990870836

• Cardinal: 813665990870836 can be written as Eight hundred thirteen trillion, six hundred sixty-five billion, nine hundred ninety million, eight hundred seventy thousand, eight hundred thirty-six.

Scientific notation

• Scientific notation: 8.13665990870836 × 10¹⁴

Factors of 813665990870836

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6040

Divisors of 813665990870836

• Number of divisors d(n): 36
• Complete list of divisors:
  1 2 4 181 362 724 5857 11714 23428 32761 65522 131044 1060117 2120234 4240468 5929741 11859482 23718964 34304449 68608898 137217796 191881177 383762354 767524708 6209105269 12418210538 24836421076 34730493037 69460986074 138921972148 1123848053689 2247696107378 4495392214756 203416497717709 406832995435418 813665990870836
• Sum of all divisors σ(n): 1432070630087916
• Sum of proper divisors (its aliquot sum) s(n): 618404639217080
• 813665990870836 is a deficient number, because the sum of its proper divisors (618404639217080) is less than itself. Its deficiency is 195261351653756

Bases of 813665990870836

• Binary: 10111001000000011001100000010110100000011100110100₂
• Hexadecimal: 0x2E406605A0734
• Base-36: 80F4ZUQBLG

Squares and roots of 813665990870836

• 813665990870836 squared (813665990870836²) is 662052344699819372893635338896
• 813665990870836 cubed (813665990870836³) is 538689477058538798515690866135001171022837056
• The square root of 813665990870836 is 28524831.1278232811
• The cube root of 813665990870836 is 93357.3942409953

Scales and comparisons

• 813,665,990,870,836 seconds is equal to 25,872,061 years, 35 weeks, 21 hours, 27 minutes, 16 seconds.
• To count from 1 to 813,665,990,870,836 would take you about sixty-four million, six hundred eighty thousand, one hundred fifty-four 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 813665990870836 cubic inches would be around 7779.8 feet tall.

Recreational maths with 813665990870836

• 813665990870836 backwards is 638078099566318
• The number of decimal digits it has is: 15
• The sum of 813665990870836's digits is 79
• More coming soon!