21460406386406820

Names of 21460406386406820

• Cardinal: 21460406386406820 can be written as Twenty-one quadrillion, four hundred sixty trillion, four hundred six billion, three hundred eighty-six million, four hundred six thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 2.146040638640682 × 10¹⁶

Factors of 21460406386406820

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 19837

Divisors of 21460406386406820

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 19 20 21 28 30 35 38 42 57 60 70 76 84 95 105 114 133 140 190 210 228 266 285 361 380 399 420 532 570 665 722 798 1083 1140 1330 1444 1596 1805 1995 2166 2527 2660 3610 3990 4332 5054 5415 6859 7220 7581 7980 10108 10830 12635 13718 15162 19801 20577 21660 25270 27436 30324 34295 37905 39602 41154 48013 50540 59403 68590 75810 79204 82308 96026 99005 102885 118806 130321 137180 138607 144039 151620 192052 198010 205770 237612 240065 260642 277214 288078 297015 376219 390963 396020 411540 415821 480130 521284 554428 576156 594030 651605 693035 720195 752438 781926 831642 912247 960260 1128657 1188060 1303210 1386070 1440390 1504876 1563852 1663284 1824494 1881095 1954815 2079105 2257314 2606420 2633533 2736741 2772140 2880780 3648988 3762190 3909630 4158210 4514628 4561235 5267066 5473482 5643285 7148161 7524380 7819260 7900599 8316420 9122470 10534132 10946964 11286570 13167665 13683705 14296322 15801198 18244940 21444483 22573140 26335330 27367410 28592644 31602396 35740805 39502995 42888966 50037127 52670660 54734820 71481610 79005990 85777932 100074254 107222415 135815059 142963220 150111381 158011980 200148508 214444830 250185635 271630118 300222762 392079601 407445177 428889660 500371270 543260236 600445524 679075295 750556905 784159202 814890354 950705413 1000742540 1176238803 1358150590 1501113810 1568318404 1629780708 1901410826 1960398005 2037225885 2352477606 2580486121 2716301180 2744557207 2852116239 3002227620 3802821652 3920796010 4074451770 4704955212 4753527065 5160972242 5489114414 5704232478 5881194015 7449512419 7741458363 7841592020 8148903540 8233671621 9507054130 10321944484 10978228828 11408464956 11762388030 12902430605 13722786035 14260581195 14899024838 15482916726 16467343242 18063402847 19014108260 22348537257 23524776060 25804861210 27445572070 28521162390 29798049676 30965833452 32934686484 36126805694 37247562095 38707291815 41168358105 44697074514 51609722420 52146586933 54190208541 54891144140 57042324780 72253611388 74495124190 77414583630 82336716210 89394149028 90317014235 104293173866 108380417082 111742686285 141540735961 148990248380 154829167260 156439760799 164673432420 180634028470 208586347732 216760834164 223485372570 260732934665 270951042705 283081471922 312879521598 361268056940 424622207883 446970745140 521465869330 541902085410 566162943844 625759043196 707703679805 782198803995 849244415766 990785151727 1042931738660 1083804170820 1415407359610 1564397607990 1698488831532 1981570303454 2123111039415 2689273983259 2830814719220 2972355455181 3128795215980 3963140606908 4246222078830 4953925758635 5378547966518 5944710910362 8067821949777 8492444157660 9907851517270 10757095933036 11889421820724 13446369916295 14861777275905 16135643899554 18824917882813 19815703034540 26892739832590 29723554551810 32271287799108 37649835765626 40339109748885 51096205681921 53785479665180 56474753648439 59447109103620 75299671531252 80678219497770 94124589414065 102192411363842 112949507296878 153288617045763 161356438995540 188249178828130 204384822727684 225899014593756 255481028409605 282373768242195 306577234091526 357673439773447 376498357656260 510962056819210 564747536484390 613154468183052 715346879546894 766443085228815 1021924113638420 1073020319320341 1129495072968780 1430693759093788 1532886170457630 1788367198867235 2146040638640682 3065772340915260 3576734397734470 4292081277281364 5365101596601705 7153468795468940 10730203193203410 21460406386406820
• Sum of all divisors σ(n): 72492115551855552
• Sum of proper divisors (its aliquot sum) s(n): 51031709165448732
• 21460406386406820 is an abundant number, because the sum of its proper divisors (51031709165448732) is greater than itself. Its abundance is 29571302779041912

Bases of 21460406386406820

• Binary: 1001100001111100010000000111011011001011011010110100100₂
• Hexadecimal: 0x4C3E203B65B5A4
• Base-36: 5VB2ULB6YZO

Squares and roots of 21460406386406820

• 21460406386406820 squared (21460406386406820²) is 460549042269730626048070542512400
• 21460406386406820 cubed (21460406386406820³) is 9883569607978871623117962826800469502291294568000
• The square root of 21460406386406820 is 146493707.6683050575
• The cube root of 21460406386406820 is 277894.0920632179

Scales and comparisons

• 21,460,406,386,406,820 seconds is equal to 682,374,541 years, 36 weeks, 7 minutes.
• To count from 1 to 21,460,406,386,406,820 would take you about two billion, forty-seven million, one hundred twenty-three thousand, six hundred twenty-five 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 21460406386406820 cubic inches would be around 23157.8 feet tall.

Recreational maths with 21460406386406820

• 21460406386406820 backwards is 02860468360406412
• 21460406386406820 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21460406386406820's digits is 60
• More coming soon!