72161061663981201

Names of 72161061663981201

• Cardinal: 72161061663981201 can be written as Seventy-two quadrillion, one hundred sixty-one trillion, sixty-one billion, six hundred sixty-three million, nine hundred eighty-one thousand, two hundred one.

Scientific notation

• Scientific notation: 7.2161061663981201 × 10¹⁶

Factors of 72161061663981201

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 481379549

Divisors of 72161061663981201

• Number of divisors d(n): 32
• Complete list of divisors:
  1 3 31 93 419 1257 3847 11541 12989 38967 119257 357771 1611893 4835679 49968683 149906049 481375249 1444125747 14922632719 44767898157 201696229331 605088687993 1851850582903 5555551748709 6252583109261 18757749327783 57407368069993 172222104209979 775925394236357 2327776182709071 24053687221327067 72161061663981201
• Sum of all divisors σ(n): 99581366277120000
• Sum of proper divisors (its aliquot sum) s(n): 27420304613138799
• 72161061663981201 is a deficient number, because the sum of its proper divisors (27420304613138799) is less than itself. Its deficiency is 44740757050842402

Bases of 72161061663981201

• Binary: 100000000010111100001101001101111000110001011111010010001₂
• Hexadecimal: 0x1005E1A6F18BE91
• Base-36: JQIYM2ZC1OX

Squares and roots of 72161061663981201

• 72161061663981201 squared (72161061663981201²) is 5207218820472897337299557281402401
• 72161061663981201 cubed (72161061663981201³) is 375758438401988199891008690226134964581322180263601
• The square root of 72161061663981201 is 268628110.3384029707
• The cube root of 72161061663981201 is 416326.7389259519

Scales and comparisons

• 72,161,061,663,981,201 seconds is equal to 2,294,498,552 years, 4 weeks, 6 days, 17 hours, 53 minutes, 21 seconds.
• To count from 1 to 72,161,061,663,981,201 would take you about six billion, eight hundred eighty-three million, four hundred ninety-five thousand, six hundred fifty-six 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 72161061663981201 cubic inches would be around 34693.9 feet tall.

Recreational maths with 72161061663981201

• 72161061663981201 backwards is 10218936616016127
• The number of decimal digits it has is: 17
• The sum of 72161061663981201's digits is 60
• More coming soon!