21355073811096823

Names of 21355073811096823

• Cardinal: 21355073811096823 can be written as Twenty-one quadrillion, three hundred fifty-five trillion, seventy-three billion, eight hundred eleven million, ninety-six thousand, eight hundred twenty-three.

Scientific notation

• Scientific notation: 2.1355073811096823 × 10¹⁶

Factors of 21355073811096823

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 60

Divisors of 21355073811096823

• Number of divisors d(n): 36
• Complete list of divisors:
  1 7 49 53 343 371 2597 2809 18179 19663 137641 148877 963487 1042139 7294973 7890481 51064811 55233367 386633569 418195493 2706434983 2927368451 20491579157 22164361129 143441054099 155150527903 1086053695321 1174711139837 7602375867247 8222977978859 57560845852013 62259690411361 402925920964091 435817832879527 3050724830156689 21355073811096823
• Sum of all divisors σ(n): 25382796860016400
• Sum of proper divisors (its aliquot sum) s(n): 4027723048919577
• 21355073811096823 is a deficient number, because the sum of its proper divisors (4027723048919577) is less than itself. Its deficiency is 17327350762177246

Bases of 21355073811096823

• Binary: 1001011110111100101001110010100101010011010010011110111₂
• Hexadecimal: 0x4BDE5394A9A4F7
• Base-36: 5U9QPH3GKXJ

Squares and roots of 21355073811096823

• 21355073811096823 squared (21355073811096823²) is 456039177477393388344214280693329
• 21355073811096823 cubed (21355073811096823³) is 9738750295781619673254976699045964909606389193767
• The square root of 21355073811096823 is 146133753.1547616927
• The cube root of 21355073811096823 is 277438.6902883817

Scales and comparisons

• 21,355,073,811,096,823 seconds is equal to 679,025,291 years, 31 weeks, 5 days, 22 hours, 53 minutes, 43 seconds.
• To count from 1 to 21,355,073,811,096,823 would take you about two billion, thirty-seven million, seventy-five thousand, eight hundred seventy-four 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 21355073811096823 cubic inches would be around 23119.9 feet tall.

Recreational maths with 21355073811096823

• 21355073811096823 backwards is 32869011837055312
• The number of decimal digits it has is: 17
• The sum of 21355073811096823's digits is 64
• More coming soon!