21396808921504184

Names of 21396808921504184

• Cardinal: 21396808921504184 can be written as Twenty-one quadrillion, three hundred ninety-six trillion, eight hundred eight billion, nine hundred twenty-one million, five hundred four thousand, one hundred eighty-four.

Scientific notation

• Scientific notation: 2.1396808921504184 × 10¹⁶

Factors of 21396808921504184

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2792440

Divisors of 21396808921504184

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 7 8 14 28 49 56 98 196 343 392 686 1372 2744 2792431 5584862 11169724 19547017 22339448 39094034 78188068 136829119 156376136 273658238 547316476 957803833 1094632952 1915607666 3831215332 7662430664 7797670889761 15595341779522 31190683559044 54583696228327 62381367118088 109167392456654 218334784913308 382085873598289 436669569826616 764171747196578 1528343494393156 2674601115188023 3056686988786312 5349202230376046 10698404460752092 21396808921504184
• Sum of all divisors σ(n): 46786042093158000
• Sum of proper divisors (its aliquot sum) s(n): 25389233171653816
• 21396808921504184 is an abundant number, because the sum of its proper divisors (25389233171653816) is greater than itself. Its abundance is 3992424250149632

Bases of 21396808921504184

• Binary: 1001100000001000100100011001011000101111101100110111000₂
• Hexadecimal: 0x4C0448CB17D9B8
• Base-36: 5UOJABIMMK8

Squares and roots of 21396808921504184

• 21396808921504184 squared (21396808921504184²) is 457823432023361041659305129505856
• 21396808921504184 cubed (21396808921504184³) is 9795960494791115865830938901099915079956156501504
• The square root of 21396808921504184 is 146276481.0948916149
• The cube root of 21396808921504184 is 277619.3093391889

Scales and comparisons

• 21,396,808,921,504,184 seconds is equal to 680,352,339 years, 1 week, 3 days, 7 hours, 9 minutes, 44 seconds.
• To count from 1 to 21,396,808,921,504,184 would take you about two billion, forty-one million, fifty-seven thousand and seventeen 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 21396808921504184 cubic inches would be around 23134.9 feet tall.

Recreational maths with 21396808921504184

• 21396808921504184 backwards is 48140512980869312
• The number of decimal digits it has is: 17
• The sum of 21396808921504184's digits is 71
• More coming soon!