81998058828

Names of 81998058828

• Cardinal: 81998058828 can be written as Eighty-one billion, nine hundred ninety-eight million, fifty-eight thousand, eight hundred twenty-eight.

Scientific notation

• Scientific notation: 8.1998058828 × 10¹⁰

Factors of 81998058828

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 253

Divisors of 81998058828

• Number of divisors d(n): 126
• Complete list of divisors:
  1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 241 294 343 482 588 686 723 964 1029 1372 1446 1687 2058 2401 2892 3374 4116 4802 5061 6748 7203 9604 10122 11809 14406 16807 20244 23618 28812 33614 35427 47236 50421 58081 67228 70854 82663 100842 116162 117649 141708 165326 174243 201684 232324 235298 247989 330652 348486 352947 406567 470596 495978 578641 696972 705894 813134 991956 1157282 1219701 1411788 1626268 1735923 2314564 2439402 2845969 3471846 4050487 4878804 5691938 6943692 8100974 8537907 11383876 12151461 16201948 17075814 19921783 24302922 28353409 34151628 39843566 48605844 56706818 59765349 79687132 85060227 113413636 119530698 139452481 170120454 239061396 278904962 340240908 418357443 557809924 836714886 976167367 1673429772 1952334734 2928502101 3904669468 5857004202 6833171569 11714008404 13666343138 20499514707 27332686276 40999029414 81998058828
• Sum of all divisors σ(n): 224146720308
• Sum of proper divisors (its aliquot sum) s(n): 142148661480
• 81998058828 is an abundant number, because the sum of its proper divisors (142148661480) is greater than itself. Its abundance is 60150602652

Bases of 81998058828

• Binary: 1001100010111011101110001010101001100₂
• Hexadecimal: 0x131777154C
• Base-36: 11O3IZ4C

Squares and roots of 81998058828

• 81998058828 squared (81998058828²) is 6723681651560148733584
• 81998058828 cubed (81998058828³) is 551328843605373273836850531279552
• The square root of 81998058828 is 286353.0318121323
• The cube root of 81998058828 is 4344.4472034417

Scales and comparisons

• 81,998,058,828 seconds is equal to 2,607 years, 14 weeks, 5 days, 14 hours, 33 minutes, 48 seconds.
• To count from 1 to 81,998,058,828 would take you about five thousand, two hundred fourteen 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 81998058828 cubic inches would be around 362 feet tall.

Recreational maths with 81998058828

• 81998058828 backwards is 82885089918
• The number of decimal digits it has is: 11
• The sum of 81998058828's digits is 66
• More coming soon!