72921471911649

Names of 72921471911649

• Cardinal: 72921471911649 can be written as Seventy-two trillion, nine hundred twenty-one billion, four hundred seventy-one million, nine hundred eleven thousand, six hundred forty-nine.

Scientific notation

• Scientific notation: 7.2921471911649 × 10¹³

Factors of 72921471911649

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5987

Divisors of 72921471911649

• Number of divisors d(n): 45
• Complete list of divisors:
  1 3 9 27 81 163 489 1467 4401 5821 13203 17463 26569 52389 79707 157167 239121 471501 717363 948823 2152089 2846469 8539407 25618221 33884041 76854663 101652123 154658149 304956369 463974447 914869107 1391923341 2744607321 4175770023 5523098683 12527310069 16569296049 49707888147 149123664441 447370993323 900265085329 2700795255987 8102385767961 24307157303883 72921471911649
• Sum of all divisors σ(n): 109623302617059
• Sum of proper divisors (its aliquot sum) s(n): 36701830705410
• 72921471911649 is a deficient number, because the sum of its proper divisors (36701830705410) is less than itself. Its deficiency is 36219641206239

Bases of 72921471911649

• Binary: 10000100101001001011010011011100000011011100001₂
• Hexadecimal: 0x42525A6E06E1
• Base-36: PUJNTLL29

Squares and roots of 72921471911649

• 72921471911649 squared (72921471911649²) is 5317541065761414062461899201
• 72921471911649 cubed (72921471911649³) is 387762921465961043535134939819972615692449
• 72921471911649 is a perfect square number. Its square root is 8539407
• The cube root of 72921471911649 is 41778.4004902509

Scales and comparisons

• 72,921,471,911,649 seconds is equal to 2,318,677 years, 12 weeks, 5 days, 11 hours, 54 minutes, 9 seconds.
• To count from 1 to 72,921,471,911,649 would take you about five million, seven hundred ninety-six thousand, six hundred ninety-three 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 72921471911649 cubic inches would be around 3481.5 feet tall.

Recreational maths with 72921471911649

• 72921471911649 backwards is 94611917412927
• The number of decimal digits it has is: 14
• The sum of 72921471911649's digits is 63
• More coming soon!