72664787481

Names of 72664787481

• Cardinal: 72664787481 can be written as Seventy-two billion, six hundred sixty-four million, seven hundred eighty-seven thousand, four hundred eighty-one.

Scientific notation

• Scientific notation: 7.2664787481 × 10¹⁰

Factors of 72664787481

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 879

Divisors of 72664787481

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 11 13 19 33 39 57 71 143 209 213 241 247 429 521 627 723 741 781 923 1349 1563 2343 2651 2717 2769 3133 4047 4579 5731 6773 7953 8151 9399 9899 10153 13737 14839 17111 17193 17537 20319 29697 30459 34463 36991 44517 50369 51333 52611 59527 74503 103389 108889 110973 125561 128687 151107 178581 188221 192907 222443 223509 325109 326667 376683 386061 406901 480883 564663 578721 654797 667329 702829 975327 1220703 1381171 1415557 1442649 1632293 1964391 2108487 2385659 2446873 3576199 4143513 4226417 4246671 4896879 5289713 7156977 7340619 7731119 8914831 9136777 10728597 12679251 15869139 17955223 23193357 26242249 26744493 27410331 31013567 46490587 53865669 78726747 93040701 98063141 100504547 115892803 139471761 169381789 294189423 301513641 341149237 347678409 508145367 1023447711 1274820833 1863199679 2201963257 3824462499 5589599037 6605889771 24221595827 72664787481
• Sum of all divisors σ(n): 122241208320
• Sum of proper divisors (its aliquot sum) s(n): 49576420839
• 72664787481 is a deficient number, because the sum of its proper divisors (49576420839) is less than itself. Its deficiency is 23088366642

Bases of 72664787481

• Binary: 1000011101011001010001010101000011001₂
• Hexadecimal: 0x10EB28AA19
• Base-36: XDQQKUX

Squares and roots of 72664787481

• 72664787481 squared (72664787481²) is 5280171339658894325361
• 72664787481 cubed (72664787481³) is 383682528259580623183793933605641
• The square root of 72664787481 is 269564.0693434495
• The cube root of 72664787481 is 4172.9322708193

Scales and comparisons

• 72,664,787,481 seconds is equal to 2,310 years, 26 weeks, 5 days, 15 hours, 11 minutes, 21 seconds.
• To count from 1 to 72,664,787,481 would take you about four thousand, six hundred twenty-one 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 72664787481 cubic inches would be around 347.7 feet tall.

Recreational maths with 72664787481

• 72664787481 backwards is 18478746627
• The number of decimal digits it has is: 11
• The sum of 72664787481's digits is 60
• More coming soon!