21126817800

Names of 21126817800

• Cardinal: 21126817800 can be written as Twenty-one billion, one hundred twenty-six million, eight hundred seventeen thousand, eight hundred.

Scientific notation

• Scientific notation: 2.11268178 × 10¹⁰

Factors of 21126817800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 97022

Divisors of 21126817800

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 25 30 33 36 40 44 45 50 55 60 66 72 75 88 90 99 100 110 120 121 132 150 165 180 198 200 220 225 242 264 275 300 330 360 363 396 440 450 484 495 550 600 605 660 726 792 825 900 968 990 1089 1100 1210 1320 1452 1650 1800 1815 1980 2178 2200 2420 2475 2904 3025 3300 3630 3960 4356 4840 4950 5445 6050 6600 7260 8712 9075 9900 10890 12100 14520 18150 19800 21780 24200 27225 36300 43560 54450 72600 97001 108900 194002 217800 291003 388004 485005 582006 776008 873009 970010 1067011 1164012 1455015 1746018 1940020 2134022 2328024 2425025 2910030 3201033 3492036 3880040 4268044 4365045 4850050 5335055 5820060 6402066 6984072 7275075 8536088 8730090 9603099 9700100 10670110 11640120 11737121 12804132 14550150 16005165 17460180 19206198 19400200 21340220 21825225 23474242 25608264 26675275 29100300 32010330 34920360 35211363 38412396 42680440 43650450 46948484 48015495 53350550 58200600 58685605 64020660 70422726 76824792 80025825 87300900 93896968 96030990 105634089 106701100 117371210 128041320 140845452 160051650 174601800 176056815 192061980 211268178 213402200 234742420 240077475 281690904 293428025 320103300 352113630 384123960 422536356 469484840 480154950 528170445 586856050 640206600 704227260 845072712 880284075 960309900 1056340890 1173712100 1408454520 1760568150 1920619800 2112681780 2347424200 2640852225 3521136300 4225363560 5281704450 7042272600 10563408900 21126817800
• Sum of all divisors σ(n): 77988152970
• Sum of proper divisors (its aliquot sum) s(n): 56861335170
• 21126817800 is an abundant number, because the sum of its proper divisors (56861335170) is greater than itself. Its abundance is 35734517370

Bases of 21126817800

• Binary: 10011101011010000011010100000001000₂
• Hexadecimal: 0x4EB41A808
• Base-36: 9PED0Y0

Squares and roots of 21126817800

• 21126817800 squared (21126817800²) is 446342430354396840000
• 21126817800 cubed (21126817800³) is 9429795202506531467575752000000
• The square root of 21126817800 is 145350.6718250727
• The cube root of 21126817800 is 2764.4666961381

Scales and comparisons

• 21,126,817,800 seconds is equal to 671 years, 39 weeks, 6 days, 8 hours, 30 minutes.
• To count from 1 to 21,126,817,800 would take you about one thousand, three hundred forty-three 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 21126817800 cubic inches would be around 230.4 feet tall.

Recreational maths with 21126817800

• 21126817800 backwards is 00871862112
• 21126817800 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21126817800's digits is 36
• More coming soon!