21321418555259943

Names of 21321418555259943

• Cardinal: 21321418555259943 can be written as Twenty-one quadrillion, three hundred twenty-one trillion, four hundred eighteen billion, five hundred fifty-five million, two hundred fifty-nine thousand, nine hundred forty-three.

Scientific notation

• Scientific notation: 2.1321418555259943 × 10¹⁶

Factors of 21321418555259943

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 750055

Divisors of 21321418555259943

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 17 51 179 289 537 867 3043 4913 9129 10937 14739 32811 51731 155193 185929 557787 738919 879427 1957723 2216757 2638281 3160793 5873169 9482379 12561623 33281291 37684869 53733481 99843873 132266501 161200443 213547591 396799503 565781947 640642773 1697345841 2248530517 3630309047 6745591551 8081557103 9618293099 10890927141 24244671309 28854879297 38225018789 114675056367 137386470751 412159412253 649825319413 1446598721437 1949475958239 2335570002767 4339796164311 7006710008301 24592178264429 39704690047039 73776534793287 119114070141117 418067030495293 1254201091485879 7107139518419981 21321418555259943
• Sum of all divisors σ(n): 30376542478464000
• Sum of proper divisors (its aliquot sum) s(n): 9055123923204057
• 21321418555259943 is a deficient number, because the sum of its proper divisors (9055123923204057) is less than itself. Its deficiency is 12266294632055886

Bases of 21321418555259943

• Binary: 1001011101111111011011110011011000101111111110000100111₂
• Hexadecimal: 0x4BBFB79B17FC27
• Base-36: 5TXT8GP36EF

Squares and roots of 21321418555259943

• 21321418555259943 squared (21321418555259943²) is 454602889208582995031952300363249
• 21321418555259943 cubed (21321418555259943³) is 9692778477246661574361287284317501245498519034807
• The square root of 21321418555259943 is 146018555.5169614153
• The cube root of 21321418555259943 is 277292.8673391981

Scales and comparisons

• 21,321,418,555,259,943 seconds is equal to 677,955,158 years, 30 weeks, 21 hours, 59 minutes, 3 seconds.
• To count from 1 to 21,321,418,555,259,943 would take you about two billion, thirty-three million, eight hundred sixty-five thousand, four hundred seventy-five 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 21321418555259943 cubic inches would be around 23107.7 feet tall.

Recreational maths with 21321418555259943

• 21321418555259943 backwards is 34995255581412312
• The number of decimal digits it has is: 17
• The sum of 21321418555259943's digits is 69
• More coming soon!