81676317540

Names of 81676317540

• Cardinal: 81676317540 can be written as Eighty-one billion, six hundred seventy-six million, three hundred seventeen thousand, five hundred forty.

Scientific notation

• Scientific notation: 8.167631754 × 10¹⁰

Factors of 81676317540

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 7531

Divisors of 81676317540

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 20 30 60 131 262 393 524 655 786 1310 1572 1889 1965 2620 3778 3930 5501 5667 7556 7860 9445 11002 11334 16503 18890 22004 22668 27505 28335 33006 37780 55010 56670 66012 82515 110020 113340 165030 247459 330060 494918 720631 742377 989836 1237295 1441262 1484754 2161893 2474590 2882524 2969508 3603155 3711885 4323786 4949180 7206310 7423770 8647572 10391389 10809465 14412620 14847540 20782778 21618930 31174167 41565556 43237860 51956945 62348334 103913890 124696668 155870835 207827780 311741670 623483340 1361271959 2722543918 4083815877 5445087836 6806359795 8167631754 13612719590 16335263508 20419079385 27225439180 40838158770 81676317540
• Sum of all divisors σ(n): 230603345280
• Sum of proper divisors (its aliquot sum) s(n): 148927027740
• 81676317540 is an abundant number, because the sum of its proper divisors (148927027740) is greater than itself. Its abundance is 67250710200

Bases of 81676317540

• Binary: 1001100000100010010011011001101100100₂
• Hexadecimal: 0x130449B364
• Base-36: 11IRYXYC

Squares and roots of 81676317540

• 81676317540 squared (81676317540²) is 6671020846894911651600
• 81676317540 cubed (81676317540³) is 544864417006948527066327449064000
• The square root of 81676317540 is 285790.6883367615
• The cube root of 81676317540 is 4338.7575556103

Scales and comparisons

• 81,676,317,540 seconds is equal to 2,597 years, 2 weeks, 5 days, 17 hours, 59 minutes.
• To count from 1 to 81,676,317,540 would take you about five thousand, one hundred ninety-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 81676317540 cubic inches would be around 361.6 feet tall.

Recreational maths with 81676317540

• 81676317540 backwards is 04571367618
• The number of decimal digits it has is: 11
• The sum of 81676317540's digits is 48
• More coming soon!