21105468800

Names of 21105468800

• Cardinal: 21105468800 can be written as Twenty-one billion, one hundred five million, four hundred sixty-eight thousand, eight hundred.

Scientific notation

• Scientific notation: 2.11054688 × 10¹⁰

Factors of 21105468800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 3004

Divisors of 21105468800

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 64 65 80 100 104 128 130 160 181 200 208 260 320 325 362 400 416 520 640 650 724 800 832 905 1040 1300 1448 1600 1664 1810 2080 2353 2600 2803 2896 3200 3620 4160 4525 4706 5200 5606 5792 7240 8320 9050 9412 10400 11212 11584 11765 14015 14480 18100 18824 20800 22424 23168 23530 28030 28960 36200 36439 37648 41600 44848 47060 56060 57920 58825 70075 72400 72878 75296 89696 94120 112120 115840 117650 140150 144800 145756 150592 179392 182195 188240 224240 235300 280300 289600 291512 301184 358784 364390 376480 448480 470600 507343 560600 579200 583024 728780 752960 896960 910975 941200 1014686 1121200 1166048 1457560 1505920 1793920 1821950 1882400 2029372 2242400 2332096 2536715 2915120 3643900 3764800 4058744 4484800 4664192 5073430 5830240 6595459 7287800 7529600 8117488 8969600 10146860 11660480 12683575 13190918 14575600 16234976 20293720 23320960 25367150 26381836 29151200 32469952 32977295 40587440 50734300 52763672 58302400 64939904 65954590 81174880 101468600 105527344 116604800 131909180 162349760 164886475 202937200 211054688 263818360 324699520 329772950 405874400 422109376 527636720 659545900 811748800 844218752 1055273440 1319091800 1623497600 2110546880 2638183600 4221093760 5276367200 10552734400 21105468800
• Sum of all divisors σ(n): 56477999760
• Sum of proper divisors (its aliquot sum) s(n): 35372530960
• 21105468800 is an abundant number, because the sum of its proper divisors (35372530960) is greater than itself. Its abundance is 14267062160

Bases of 21105468800

• Binary: 10011101001111110111110010110000000₂
• Hexadecimal: 0x4E9FBE580
• Base-36: 9P1NFY8

Squares and roots of 21105468800

• 21105468800 squared (21105468800²) is 445440813267773440000
• 21105468800 cubed (21105468800³) is 9401237186669618383388672000000
• The square root of 21105468800 is 145277.2136296673
• The cube root of 21105468800 is 2763.5352024795

Scales and comparisons

• 21,105,468,800 seconds is equal to 671 years, 4 weeks, 4 days, 6 hours, 13 minutes, 20 seconds.
• To count from 1 to 21,105,468,800 would take you about one thousand, three hundred forty-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 21105468800 cubic inches would be around 230.3 feet tall.

Recreational maths with 21105468800

• 21105468800 backwards is 00886450112
• The number of decimal digits it has is: 11
• The sum of 21105468800's digits is 35
• More coming soon!