21042944678877423360

Names of 21042944678877423360

• Cardinal: 21042944678877423360 can be written as Twenty-one quintillion, forty-two quadrillion, nine hundred forty-four trillion, six hundred seventy-eight billion, eight hundred seventy-seven million, four hundred twenty-three thousand, three hundred sixty.

Scientific notation

• Scientific notation: 2.104294467887742336 × 10¹⁹

Factors of 21042944678877423360

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 74026583

Divisors of 21042944678877423360

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 640 768 960 1280 1920 3840 74026573 148053146 222079719 296106292 370132865 444159438 592212584 740265730 888318876 1110398595 1184425168 1480531460 1776637752 2220797190 2368850336 2961062920 3553275504 4441594380 4737700672 5922125840 7106551008 8883188760 9475401344 11844251680 14213102016 17766377520 18950802688 23688503360 28426204032 35532755040 47377006720 56852408064 71065510080 94754013440 142131020160 284262040320 5479933510124329 10959867020248658 16439800530372987 21919734040497316 27399667550621645 32879601060745974 43839468080994632 54799335101243290 65759202121491948 82199002651864935 87678936161989264 109598670202486580 131518404242983896 164398005303729870 175357872323978528 219197340404973160 263036808485967792 328796010607459740 350715744647957056 438394680809946320 526073616971935584 657592021214919480 701431489295914112 876789361619892640 1052147233943871168 1315184042429838960 1402862978591828224 1753578723239785280 2104294467887742336 2630368084859677920 3507157446479570560 4208588935775484672 5260736169719355840 7014314892959141120 10521472339438711680 21042944678877423360
• Sum of all divisors σ(n): 67205905476026674392
• Sum of proper divisors (its aliquot sum) s(n): 46162960797149251032
• 21042944678877423360 is an abundant number, because the sum of its proper divisors (46162960797149251032) is greater than itself. Its abundance is 25120016118271827672

Bases of 21042944678877423360

• Binary: 10010010000000111100011101011000111110100101011110110011100000000₂
• Hexadecimal: 0x124078EB1F4AF6700
• Base-36: 4FVH9C32OJFUO

Squares and roots of 21042944678877423360

• 21042944678877423360 squared (21042944678877423360²) is 442805520758295666132099627912673689600
• 21042944678877423360 cubed (21042944678877423360³) is 9317932076818324219835224241401842124696831884112429056000
• The square root of 21042944678877423360 is 4587258950.4929219071
• The cube root of 21042944678877423360 is 2760803.5484511501

Scales and comparisons

• 21,042,944,678,877,423,360 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 21,042,944,678,877,423,360 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 21042944678877423360 cubic inches would be around 230067 feet tall.

Recreational maths with 21042944678877423360

• 21042944678877423360 backwards is 06332477887644924012
• The number of decimal digits it has is: 20
• The sum of 21042944678877423360's digits is 87
• More coming soon!