72661534816

Names of 72661534816

• Cardinal: 72661534816 can be written as Seventy-two billion, six hundred sixty-one million, five hundred thirty-four thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 7.2661534816 × 10¹⁰

Factors of 72661534816

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 13807

Divisors of 72661534816

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 104 113 208 226 416 452 904 1469 1808 2938 3616 5876 11752 12769 13679 23504 25538 27358 47008 51076 54716 102152 109432 165997 177827 204304 218864 331994 355654 408608 437728 663988 711308 1327976 1422616 1545727 2655952 2845232 3091454 5311904 5690464 6182908 12365816 20094451 24731632 40188902 49463264 80377804 160755608 174667151 321511216 349334302 643022432 698668604 1397337208 2270672963 2794674416 4541345926 5589348832 9082691852 18165383704 36330767408 72661534816
• Sum of all divisors σ(n): 155443186080
• Sum of proper divisors (its aliquot sum) s(n): 82781651264
• 72661534816 is an abundant number, because the sum of its proper divisors (82781651264) is greater than itself. Its abundance is 10120116448

Bases of 72661534816

• Binary: 1000011101010111101110000100001100000₂
• Hexadecimal: 0x10EAF70860
• Base-36: XDOSV34

Squares and roots of 72661534816

• 72661534816 squared (72661534816²) is 5279698641816780153856
• 72661534816 cubed (72661534816³) is 383631006680357884642425580650496
• The square root of 72661534816 is 269558.0360812861
• The cube root of 72661534816 is 4172.8700061207

Scales and comparisons

• 72,661,534,816 seconds is equal to 2,310 years, 21 weeks, 2 days, 23 hours, 40 minutes, 16 seconds.
• To count from 1 to 72,661,534,816 would take you about four thousand, six hundred twenty 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 72661534816 cubic inches would be around 347.7 feet tall.

Recreational maths with 72661534816

• 72661534816 backwards is 61843516627
• The number of decimal digits it has is: 11
• The sum of 72661534816's digits is 49
• More coming soon!