72139454937

Names of 72139454937

• Cardinal: 72139454937 can be written as Seventy-two billion, one hundred thirty-nine million, four hundred fifty-four thousand, nine hundred thirty-seven.

Scientific notation

• Scientific notation: 7.2139454937 × 10¹⁰

Factors of 72139454937

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 535

Divisors of 72139454937

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 11 33 97 99 173 251 291 519 753 873 1067 1557 1903 2259 2761 3201 5709 8283 9603 16781 17127 24347 24849 29929 43423 50343 73041 89787 130269 151029 184591 219123 267817 269361 329219 390807 477653 553773 803451 987657 1432959 1661319 2410353 2903113 2962971 4212031 4298877 7512179 8709339 12636093 22536537 26128017 31934243 37908279 46332341 67609611 82633969 95802729 138997023 247901907 287408187 416991069 728681363 743705721 2186044089 6558132267 8015494993 24046484979 72139454937
• Sum of all divisors σ(n): 115974095328
• Sum of proper divisors (its aliquot sum) s(n): 43834640391
• 72139454937 is a deficient number, because the sum of its proper divisors (43834640391) is less than itself. Its deficiency is 28304814546

Bases of 72139454937

• Binary: 1000011001011110110001011100111011001₂
• Hexadecimal: 0x10CBD8B9D9
• Base-36: X51YVO9

Squares and roots of 72139454937

• 72139454937 squared (72139454937²) is 5204100958607453673969
• 72139454937 cubed (72139454937³) is 375421006591060906585601765434953
• The square root of 72139454937 is 268587.8905256155
• The cube root of 72139454937 is 4162.8518209025

Scales and comparisons

• 72,139,454,937 seconds is equal to 2,293 years, 42 weeks, 1 day, 9 hours, 28 minutes, 57 seconds.
• To count from 1 to 72,139,454,937 would take you about four thousand, five hundred eighty-seven 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 72139454937 cubic inches would be around 346.9 feet tall.

Recreational maths with 72139454937

• 72139454937 backwards is 73945493127
• The number of decimal digits it has is: 11
• The sum of 72139454937's digits is 54
• More coming soon!