81083079642

Names of 81083079642

• Cardinal: 81083079642 can be written as Eighty-one billion, eighty-three million, seventy-nine thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 8.1083079642 × 10¹⁰

Factors of 81083079642

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 6187

Divisors of 81083079642

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 83 127 166 223 249 254 381 446 498 669 762 1338 5749 10541 11498 17247 18509 21082 28321 31623 34494 37018 55527 56642 63246 84963 111054 169926 477167 730123 954334 1282027 1431501 1460246 2190369 2350643 2564054 2863002 3846081 4380738 4701286 7051929 7692162 14103858 60600209 106408241 121200418 162817429 181800627 212816482 319224723 325634858 363601254 488452287 638449446 976904574 13513846607 27027693214 40541539821 81083079642
• Sum of all divisors σ(n): 166182912000
• Sum of proper divisors (its aliquot sum) s(n): 85099832358
• 81083079642 is an abundant number, because the sum of its proper divisors (85099832358) is greater than itself. Its abundance is 4016752716

Bases of 81083079642

• Binary: 1001011100000111011011001101111011010₂
• Hexadecimal: 0x12E0ED9BDA
• Base-36: 118YRSNU

Squares and roots of 81083079642

• 81083079642 squared (81083079642²) is 6574465804230914848164
• 81083079642 cubed (81083079642³) is 533077934408060849192201949477288
• The square root of 81083079642 is 284750.9080617655
• The cube root of 81083079642 is 4328.2274841977

Scales and comparisons

• 81,083,079,642 seconds is equal to 2,578 years, 9 weeks, 6 days, 13 hours, 40 minutes, 42 seconds.
• To count from 1 to 81,083,079,642 would take you about five thousand, one 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 81083079642 cubic inches would be around 360.7 feet tall.

Recreational maths with 81083079642

• 81083079642 backwards is 24697038018
• The number of decimal digits it has is: 11
• The sum of 81083079642's digits is 48
• More coming soon!