21137431020

Names of 21137431020

• Cardinal: 21137431020 can be written as Twenty-one billion, one hundred thirty-seven million, four hundred thirty-one thousand and twenty.

Scientific notation

• Scientific notation: 2.113743102 × 10¹⁰

Factors of 21137431020

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 158037

Divisors of 21137431020

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 97 115 138 194 230 276 291 345 388 460 485 582 690 970 1164 1380 1455 1940 2231 2910 4462 5820 6693 8924 11155 13386 22310 26772 33465 44620 66930 133860 157907 315814 473721 631628 789535 947442 1579070 1894884 2368605 3158140 3631861 4737210 7263722 9474420 10895583 14527444 15316979 18159305 21791166 30633958 36318610 43582332 45950937 54477915 61267916 72637220 76584895 91901874 108955830 153169790 183803748 217911660 229754685 306339580 352290517 459509370 704581034 919018740 1056871551 1409162068 1761452585 2113743102 3522905170 4227486204 5284357755 7045810340 10568715510 21137431020
• Sum of all divisors σ(n): 62395135488
• Sum of proper divisors (its aliquot sum) s(n): 41257704468
• 21137431020 is an abundant number, because the sum of its proper divisors (41257704468) is greater than itself. Its abundance is 20120273448

Bases of 21137431020

• Binary: 10011101011111000111001100111101100₂
• Hexadecimal: 0x4EBE399EC
• Base-36: 9PKOI5O

Squares and roots of 21137431020

• 21137431020 squared (21137431020²) is 446790990125258240400
• 21137431020 cubed (21137431020³) is 9444013734130147216141577208000
• The square root of 21137431020 is 145387.1762570549
• The cube root of 21137431020 is 2764.9295357043

Scales and comparisons

• 21,137,431,020 seconds is equal to 672 years, 5 weeks, 3 days, 4 hours, 37 minutes.
• To count from 1 to 21,137,431,020 would take you about one thousand, three hundred forty-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 21137431020 cubic inches would be around 230.4 feet tall.

Recreational maths with 21137431020

• 21137431020 backwards is 02013473112
• The number of decimal digits it has is: 11
• The sum of 21137431020's digits is 24
• More coming soon!