21218833946634240

Names of 21218833946634240

• Cardinal: 21218833946634240 can be written as Twenty-one quadrillion, two hundred eighteen trillion, eight hundred thirty-three billion, nine hundred forty-six million, six hundred thirty-four thousand, two hundred forty.

Scientific notation

• Scientific notation: 2.121883394663424 × 10¹⁶

Factors of 21218833946634240

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 98673892998

Divisors of 21218833946634240

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 70 80 84 96 105 112 120 128 140 160 168 192 210 224 240 256 280 320 336 384 420 448 480 512 560 640 672 768 840 896 960 1024 1120 1280 1344 1536 1680 1792 1920 2048 2240 2560 2688 3072 3360 3584 3840 4480 5120 5376 6144 6720 7168 7680 8960 10240 10752 13440 14336 15360 17920 21504 26880 30720 35840 43008 53760 71680 107520 215040 98673892981 197347785962 296021678943 394695571924 493369464905 592043357886 690717250867 789391143848 986738929810 1184086715772 1381434501734 1480108394715 1578782287696 1973477859620 2072151752601 2368173431544 2762869003468 2960216789430 3157564575392 3453586254335 3946955719240 4144303505202 4736346863088 5525738006936 5920433578860 6315129150784 6907172508670 7893911438480 8288607010404 9472693726176 10360758763005 11051476013872 11840867157720 12630258301568 13814345017340 15787822876960 16577214020808 18945387452352 20721517526010 22102952027744 23681734315440 25260516603136 27628690034680 31575645753920 33154428041616 37890774904704 41443035052020 44205904055488 47363468630880 50521033206272 55257380069360 63151291507840 66308856083232 75781549809408 82886070104040 88411808110976 94726937261760 101042066412544 110514760138720 126302583015680 132617712166464 151563099618816 165772140208080 176823616221952 189453874523520 202084132825088 221029520277440 252605166031360 265235424332928 303126199237632 331544280416160 353647232443904 378907749047040 442059040554880 505210332062720 530470848665856 606252398475264 663088560832320 707294464887808 757815498094080 884118081109760 1010420664125440 1060941697331712 1326177121664640 1414588929775616 1515630996188160 1768236162219520 2121883394663424 2652354243329280 3031261992376320 3536472324439040 4243766789326848 5304708486658560 7072944648878080 10609416973317120 21218833946634240
• Sum of all divisors σ(n): 77581361618167680
• Sum of proper divisors (its aliquot sum) s(n): 56362527671533440
• 21218833946634240 is an abundant number, because the sum of its proper divisors (56362527671533440) is greater than itself. Its abundance is 35143693724899200

Bases of 21218833946634240

• Binary: 1001011011000100110101011000011111011111110100000000000₂
• Hexadecimal: 0x4B626AC3EFE800
• Base-36: 5SXG5QTRO5C

Squares and roots of 21218833946634240

• 21218833946634240 squared (21218833946634240²) is 450238914054837597400224340377600
• 21218833946634240 cubed (21218833946634240³) is 9553544753642524046083101779394795623650689024000
• The square root of 21218833946634240 is 145666859.4658175501
• The cube root of 21218833946634240 is 276847.4353801903

Scales and comparisons

• 21,218,833,946,634,240 seconds is equal to 674,693,285 years, 17 weeks, 4 days, 19 hours, 44 minutes.
• To count from 1 to 21,218,833,946,634,240 would take you about two billion, twenty-four million, seventy-nine thousand, eight hundred fifty-six 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 21218833946634240 cubic inches would be around 23070.6 feet tall.

Recreational maths with 21218833946634240

• 21218833946634240 backwards is 04243664933881212
• The number of decimal digits it has is: 17
• The sum of 21218833946634240's digits is 66
• More coming soon!