21020920998585

Names of 21020920998585

• Cardinal: 21020920998585 can be written as Twenty-one trillion, twenty billion, nine hundred twenty million, nine hundred ninety-eight thousand, five hundred eighty-five.

Scientific notation

• Scientific notation: 2.1020920998585 × 10¹³

Factors of 21020920998585

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 290206

Divisors of 21020920998585

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 15 23 69 113 115 339 345 565 1695 1871 2599 5613 7797 9355 12995 28065 38985 43033 129099 211423 215165 288191 634269 645495 864573 1057115 1440955 3171345 4322865 4862729 6628393 14588187 19885179 24313645 32565583 33141965 72940935 97696749 99425895 162827915 488483745 539205361 749008409 1617616083 2247025227 2696026805 3745042045 8088080415 11235126135 12401723303 37205169909 60930205793 62008616515 182790617379 186025849545 304651028965 913953086895 1401394733239 4204184199717 7006973666195 21020920998585
• Sum of all divisors σ(n): 35425427521536
• Sum of proper divisors (its aliquot sum) s(n): 14404506522951
• 21020920998585 is a deficient number, because the sum of its proper divisors (14404506522951) is less than itself. Its deficiency is 6616414475634

Bases of 21020920998585

• Binary: 100110001111001010000100001110110101010111001₂
• Hexadecimal: 0x131E50876AB9
• Base-36: 7G8VLM9IX

Squares and roots of 21020920998585

• 21020920998585 squared (21020920998585²) is 441879119628751793572002225
• 21020920998585 cubed (21020920998585³) is 9288706064640281827010682795644841851625
• The square root of 21020920998585 is 4584857.7948050907
• The cube root of 21020920998585 is 27598.4005403121

Scales and comparisons

• 21,020,920,998,585 seconds is equal to 668,400 years, 13 weeks, 5 days, 17 hours, 49 minutes, 45 seconds.
• To count from 1 to 21,020,920,998,585 would take you about one million, six hundred seventy-one thousand 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 21020920998585 cubic inches would be around 2299.9 feet tall.

Recreational maths with 21020920998585

• 21020920998585 backwards is 58589902902012
• The number of decimal digits it has is: 14
• The sum of 21020920998585's digits is 60
• More coming soon!