21378206291937

Names of 21378206291937

• Cardinal: 21378206291937 can be written as Twenty-one trillion, three hundred seventy-eight billion, two hundred six million, two hundred ninety-one thousand, nine hundred thirty-seven.

Scientific notation

• Scientific notation: 2.1378206291937 × 10¹³

Factors of 21378206291937

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 53854

Divisors of 21378206291937

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 11 33 41 123 137 411 451 1353 1507 2243 4521 5617 6729 16851 24673 51419 61787 74019 91963 154257 185361 275889 307291 565609 921873 1011593 1696827 2108179 3034779 3380201 6324537 7044403 10140603 12598931 21133209 23189969 37796793 69569907 77488433 115332817 138588241 232465299 288820523 345998451 415764723 866461569 1268660987 3177025753 3805982961 4728645497 9531077259 14185936491 15800595929 47401787787 52015100467 156045301401 173806555219 521419665657 647824433089 1943473299267 7126068763979 21378206291937
• Sum of all divisors σ(n): 32101441827840
• Sum of proper divisors (its aliquot sum) s(n): 10723235535903
• 21378206291937 is a deficient number, because the sum of its proper divisors (10723235535903) is less than itself. Its deficiency is 10654970756034

Bases of 21378206291937

• Binary: 100110111000110000000011001000101011111100001₂
• Hexadecimal: 0x1371806457E1
• Base-36: 7KT0G228X

Squares and roots of 21378206291937

• 21378206291937 squared (21378206291937²) is 457027704260614735271211969
• 21378206291937 cubed (21378206291937³) is 9770432542813796395994519313819422593953
• The square root of 21378206291937 is 4623657.2420473601
• The cube root of 21378206291937 is 27753.8830881059

Scales and comparisons

• 21,378,206,291,937 seconds is equal to 679,760 years, 43 weeks, 2 days, 4 hours, 38 minutes, 57 seconds.
• To count from 1 to 21,378,206,291,937 would take you about one million, six hundred ninety-nine thousand, four hundred two 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 21378206291937 cubic inches would be around 2312.8 feet tall.

Recreational maths with 21378206291937

• 21378206291937 backwards is 73919260287312
• The number of decimal digits it has is: 14
• The sum of 21378206291937's digits is 60
• More coming soon!