180406392864781221

Names of 180406392864781221

• Cardinal: 180406392864781221 can be written as One hundred eighty quadrillion, four hundred six trillion, three hundred ninety-two billion, eight hundred sixty-four million, seven hundred eighty-one thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 1.80406392864781221 × 10¹⁷

Factors of 180406392864781221

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1041301431

Divisors of 180406392864781221

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 9 23 69 207 353 1059 2371 3177 7113 8119 21339 24357 54533 73071 163599 490797 836963 2510889 7532667 19250149 57750447 173251341 1041298681 3123896043 9371688129 23949869663 71849608989 215548826967 367578434393 1102735303179 2468919172651 3308205909537 7406757517953 8454303991039 22220272553859 25362911973117 56785140970973 76088735919351 170355422912919 511066268738757 871528467945803 2614585403837409 7843756211512227 20045154762753469 60135464288260407 180406392864781221
• Sum of all divisors σ(n): 272802194399659392
• Sum of proper divisors (its aliquot sum) s(n): 92395801534878171
• 180406392864781221 is a deficient number, because the sum of its proper divisors (92395801534878171) is less than itself. Its deficiency is 88010591329903050

Bases of 180406392864781221

• Binary: 1010000000111011101010100010010001111010100011001110100101₂
• Hexadecimal: 0x280EEA891EA33A5
• Base-36: 1DCCQ8QSNSF9

Squares and roots of 180406392864781221

• 180406392864781221 squared (180406392864781221²) is 32546466586481784647775824194250841
• 180406392864781221 cubed (180406392864781221³) is 5871590637361307855919647089673733548761255460256861
• The square root of 180406392864781221 is 424742737.2713760965
• The cube root of 180406392864781221 is 565046.2205274137

Scales and comparisons

• 180,406,392,864,781,221 seconds is equal to 5,736,365,259 years, 25 weeks, 2 days, 11 hours, 40 minutes, 21 seconds.
• To count from 1 to 180,406,392,864,781,221 would take you about seventeen billion, two hundred nine million, ninety-five thousand, seven 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 180406392864781221 cubic inches would be around 47087.2 feet tall.

Recreational maths with 180406392864781221

• 180406392864781221 backwards is 122187468293604081
• The number of decimal digits it has is: 18
• The sum of 180406392864781221's digits is 72
• More coming soon!