81730669520000

Names of 81730669520000

• Cardinal: 81730669520000 can be written as Eighty-one trillion, seven hundred thirty billion, six hundred sixty-nine million, five hundred twenty thousand.

Scientific notation

• Scientific notation: 8.173066952 × 10¹³

Factors of 81730669520000

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 31970

Divisors of 81730669520000

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 320 400 500 625 640 800 1000 1250 1600 2000 2500 3200 4000 5000 8000 10000 16000 20000 31963 40000 63926 80000 127852 159815 255704 319630 511408 639260 799075 1022816 1278520 1598150 2045632 2557040 3196300 3995375 4091264 5114080 6392600 7990750 10228160 12785200 15981500 19976875 20456320 25570400 31963000 39953750 51140800 63926000 79907500 102281600 127852000 159815000 255704000 319630000 511408000 639260000 1021633369 1278520000 2043266738 2557040000 4086533476 5108166845 8173066952 10216333690 16346133904 20432667380 25540834225 32692267808 40865334760 51081668450 65384535616 81730669520 102163336900 127704171125 130769071232 163461339040 204326673800 255408342250 326922678080 408653347600 510816684500 638520855625 653845356160 817306695200 1021633369000 1277041711250 1634613390400 2043266738000 2554083422500 3269226780800 4086533476000 5108166845000 8173066952000 10216333690000 16346133904000 20432667380000 40865334760000 81730669520000
• Sum of all divisors σ(n): 203469759393615
• Sum of proper divisors (its aliquot sum) s(n): 121739089873615
• 81730669520000 is an abundant number, because the sum of its proper divisors (121739089873615) is greater than itself. Its abundance is 40008420353615

Bases of 81730669520000

• Binary: 10010100101010101100111100001100010010010000000₂
• Hexadecimal: 0x4A5567862480
• Base-36: SYYJUEPVK

Squares and roots of 81730669520000

• 81730669520000 squared (81730669520000²) is 6679902340187457030400000000
• 81730669520000 cubed (81730669520000³) is 545952890591735665400822993408000000000000
• The square root of 81730669520000 is 9040501.6188262473
• The cube root of 81730669520000 is 43397.1975934753

Scales and comparisons

• 81,730,669,520,000 seconds is equal to 2,598,782 years, 25 weeks, 3 hours, 33 minutes, 20 seconds.
• To count from 1 to 81,730,669,520,000 would take you about six million, four hundred ninety-six thousand, nine hundred fifty-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 81730669520000 cubic inches would be around 3616.4 feet tall.

Recreational maths with 81730669520000

• 81730669520000 backwards is 00002596603718
• The number of decimal digits it has is: 14
• The sum of 81730669520000's digits is 47
• More coming soon!