72001809490

Names of 72001809490

• Cardinal: 72001809490 can be written as Seventy-two billion, one million, eight hundred nine thousand, four hundred ninety.

Scientific notation

• Scientific notation: 7.200180949 × 10¹⁰

Factors of 72001809490

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2135

Divisors of 72001809490

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 5 10 13 26 65 79 130 158 169 313 338 395 626 790 845 1027 1565 1690 1723 2054 3130 3446 4069 5135 8138 8615 10270 13351 17230 20345 22399 24727 26702 40690 44798 49454 52897 66755 105794 111995 123635 133510 136117 223990 247270 264485 272234 291187 321451 528970 539299 582374 642902 680585 1078598 1361170 1455935 1607255 1769521 2696495 2911870 3214510 3539042 4178863 5392990 7010887 8357726 8847605 14021774 17695210 20894315 23003773 35054435 41788630 42604621 46007546 70108870 85209242 91141531 115018865 182283062 213023105 230037730 426046210 455707655 553860073 911415310 1107720146 2769300365 5538600730 7200180949 14400361898 36000904745 72001809490
• Sum of all divisors σ(n): 142652862720
• Sum of proper divisors (its aliquot sum) s(n): 70651053230
• 72001809490 is a deficient number, because the sum of its proper divisors (70651053230) is less than itself. Its deficiency is 1350756260

Bases of 72001809490

• Binary: 1000011000011101001000110110001010010₂
• Hexadecimal: 0x10C3A46C52
• Base-36: X2S0NRM

Squares and roots of 72001809490

• 72001809490 squared (72001809490²) is 5184260569834254060100
• 72001809490 cubed (72001809490³) is 373276141895724801711579210349000
• The square root of 72001809490 is 268331.5290643273
• The cube root of 72001809490 is 4160.2024966535

Scales and comparisons

• 72,001,809,490 seconds is equal to 2,289 years, 22 weeks, 4 days, 6 hours, 38 minutes, 10 seconds.
• To count from 1 to 72,001,809,490 would take you about four thousand, five hundred seventy-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 72001809490 cubic inches would be around 346.7 feet tall.

Recreational maths with 72001809490

• 72001809490 backwards is 09490810027
• The number of decimal digits it has is: 11
• The sum of 72001809490's digits is 40
• More coming soon!