21219008438438

Names of 21219008438438

• Cardinal: 21219008438438 can be written as Twenty-one trillion, two hundred nineteen billion, eight million, four hundred thirty-eight thousand, four hundred thirty-eight.

Scientific notation

• Scientific notation: 2.1219008438438 × 10¹³

Factors of 21219008438438

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 24500

Divisors of 21219008438438

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 191 382 1399 1889 2798 3778 21019 42038 267209 360799 534418 721598 2642711 4014629 5285422 8029258 29405581 39704891 58811162 79409782 504757801 1009515602 5616465971 7583634181 11232931942 15167268362 55547142509 111094285018 10609504219219 21219008438438
• Sum of all divisors σ(n): 32036497920000
• Sum of proper divisors (its aliquot sum) s(n): 10817489481562
• 21219008438438 is a deficient number, because the sum of its proper divisors (10817489481562) is less than itself. Its deficiency is 10401518956876

Bases of 21219008438438

• Binary: 100110100110001101111011101011110000010100110₂
• Hexadecimal: 0x134C6F75E0A6
• Base-36: 7IRVLRKBQ

Squares and roots of 21219008438438

• 21219008438438 squared (21219008438438²) is 450246319110503051235879844
• 21219008438438 cubed (21219008438438³) is 9553780444581412786369281074631439043672
• The square root of 21219008438438 is 4606409.4953052101
• The cube root of 21219008438438 is 27684.8194257517

Scales and comparisons

• 21,219,008,438,438 seconds is equal to 674,698 years, 43 weeks, 2 days, 10 hours, 40 minutes, 38 seconds.
• To count from 1 to 21,219,008,438,438 would take you about one million, six hundred eighty-six thousand, seven hundred forty-seven 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 21219008438438 cubic inches would be around 2307.1 feet tall.

Recreational maths with 21219008438438

• 21219008438438 backwards is 83483480091212
• The number of decimal digits it has is: 14
• The sum of 21219008438438's digits is 53
• More coming soon!