81272948088

Names of 81272948088

• Cardinal: 81272948088 can be written as Eighty-one billion, two hundred seventy-two million, nine hundred forty-eight thousand and eighty-eight.

Scientific notation

• Scientific notation: 8.1272948088 × 10¹⁰

Factors of 81272948088

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2637

Divisors of 81272948088

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 12 24 73 89 146 178 219 233 267 292 356 438 466 534 584 699 712 876 932 1068 1398 1752 1864 2136 2237 2796 4474 5592 6497 6711 8948 12994 13422 17009 17896 19491 20737 25988 26844 34018 38982 41474 51027 51976 53688 62211 68036 77964 82948 102054 124422 136072 155928 163301 165896 199093 204108 248844 326602 398186 408216 489903 497688 521221 597279 653204 796372 979806 1042442 1194558 1306408 1513801 1563663 1592744 1959612 2084884 2389116 3027602 3127326 3919224 4169768 4541403 4778232 6055204 6254652 9082806 12110408 12509304 14533789 18165612 29067578 36331224 38049133 43601367 46388669 58135156 76098266 87202734 92777338 114147399 116270312 139166007 152196532 174405468 185554676 228294798 278332014 304393064 348810936 371109352 456589596 556664028 913179192 1113328056 3386372837 6772745674 10159118511 13545491348 20318237022 27090982696 40636474044 81272948088
• Sum of all divisors σ(n): 209267323200
• Sum of proper divisors (its aliquot sum) s(n): 127994375112
• 81272948088 is an abundant number, because the sum of its proper divisors (127994375112) is greater than itself. Its abundance is 46721427024

Bases of 81272948088

• Binary: 1001011101100001111101100010101111000₂
• Hexadecimal: 0x12EC3EC578
• Base-36: 11C3TC3C

Squares and roots of 81272948088

• 81272948088 squared (81272948088²) is 6605292090914742855744
• 81272948088 cubed (81272948088³) is 536831561210990872548750984617472
• The square root of 81272948088 is 285084.1070421149
• The cube root of 81272948088 is 4331.6032530641

Scales and comparisons

• 81,272,948,088 seconds is equal to 2,584 years, 11 weeks, 6 days, 2 hours, 54 minutes, 48 seconds.
• To count from 1 to 81,272,948,088 would take you about five thousand, one hundred sixty-eight 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 81272948088 cubic inches would be around 361 feet tall.

Recreational maths with 81272948088

• 81272948088 backwards is 88084927218
• The number of decimal digits it has is: 11
• The sum of 81272948088's digits is 57
• More coming soon!