21013887551628

Names of 21013887551628

• Cardinal: 21013887551628 can be written as Twenty-one trillion, thirteen billion, eight hundred eighty-seven million, five hundred fifty-one thousand, six hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1013887551628 × 10¹³

Factors of 21013887551628

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2371

Divisors of 21013887551628

• Number of divisors d(n): 54
• Complete list of divisors:
  1 2 3 4 6 12 907 1459 1814 2721 2918 3628 4377 5442 5836 8754 10884 17508 822649 1323313 1645298 2128681 2467947 2646626 3290596 3969939 4257362 4935894 5293252 6386043 7939878 8514724 9871788 12772086 15879756 25544172 1200244891 1930713667 2400489782 3600734673 3861427334 4800979564 5792141001 7201469346 7722854668 11584282002 14402938692 23168564004 1751157295969 3502314591938 5253471887907 7004629183876 10506943775814 21013887551628
• Sum of all divisors σ(n): 49120190883036
• Sum of proper divisors (its aliquot sum) s(n): 28106303331408
• 21013887551628 is an abundant number, because the sum of its proper divisors (28106303331408) is greater than itself. Its abundance is 7092415779780

Bases of 21013887551628

• Binary: 100110001110010101101010011011000100010001100₂
• Hexadecimal: 0x131CAD4D888C
• Base-36: 7G5NA334C

Squares and roots of 21013887551628

• 21013887551628 squared (21013887551628²) is 441583470032466220365450384
• 21013887551628 cubed (21013887551628³) is 9279385383919937893145949281235272425152
• The square root of 21013887551628 is 4584090.7006327875
• The cube root of 21013887551628 is 27595.3221223903

Scales and comparisons

• 21,013,887,551,628 seconds is equal to 668,176 years, 32 weeks, 3 days, 2 hours, 33 minutes, 48 seconds.
• To count from 1 to 21,013,887,551,628 would take you about one million, six hundred seventy thousand, four hundred forty-one 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 21013887551628 cubic inches would be around 2299.6 feet tall.

Recreational maths with 21013887551628

• 21013887551628 backwards is 82615578831012
• The number of decimal digits it has is: 14
• The sum of 21013887551628's digits is 57
• More coming soon!