21640734887668736

Names of 21640734887668736

• Cardinal: 21640734887668736 can be written as Twenty-one quadrillion, six hundred forty trillion, seven hundred thirty-four billion, eight hundred eighty-seven million, six hundred sixty-eight thousand, seven hundred thirty-six.

Scientific notation

• Scientific notation: 2.1640734887668736 × 10¹⁶

Factors of 21640734887668736

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 255

Divisors of 21640734887668736

• Number of divisors d(n): 352
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 56 64 97 112 128 149 194 224 256 298 388 448 512 596 679 776 896 1024 1043 1192 1358 1552 1792 2086 2384 2716 3104 3584 4172 4768 5432 6208 7168 8344 9409 9536 10864 12416 14453 16688 18818 19072 21728 22201 24832 28906 33376 37636 38144 43456 44402 49664 57812 65863 66752 75272 76288 86912 88804 99328 101171 115624 131726 133504 150544 152576 155407 173824 177608 202342 231248 263452 267008 301088 310814 347648 355216 404684 462496 526904 534016 602176 621628 695296 710432 809368 912673 924992 1053808 1068032 1204352 1243256 1401941 1420864 1618736 1825346 1849984 2107616 2153497 2408704 2486512 2803882 2841728 3237472 3307949 3650692 3699968 4215232 4306994 4817408 4973024 5607764 5683456 6388711 6474944 6615898 7301384 7399936 8430464 8613988 9634816 9813587 9946048 11215528 11366912 12777422 12949888 13231796 14602768 14799872 15074479 16860928 17227976 19627174 19892096 22431056 22733824 23155643 25554844 25899776 26463592 29205536 30148958 33721856 34455952 39254348 39784192 44862112 46311286 51109688 51799552 52927184 58411072 60297916 67443712 68911904 78508696 79568384 89724224 92622572 102219376 103599104 105854368 116822144 120595832 135988277 137823808 157017392 159136768 179448448 185245144 204438752 208889209 211708736 233644288 241191664 271976554 275647616 314034784 320871053 358896896 370490288 408877504 417778418 423417472 467288576 482383328 543953108 551295232 628069568 641742106 717793792 740980576 817755008 835556836 846834944 934577152 951917939 964766656 1087906216 1102590464 1256139136 1283484212 1435587584 1462224463 1481961152 1635510016 1671113672 1693669888 1903835878 1929533312 2175812432 2205180928 2246097371 2512278272 2566968424 2924448926 2963922304 3271020032 3342227344 3387339776 3807671756 3859066624 4351624864 4492194742 5024556544 5133936848 5848897852 5927844608 6542040064 6684454688 7615343512 7718133248 8703249728 8984389484 10049113088 10267873696 11697795704 11855689216 13368909376 15230687024 15436266496 17406499456 17968778968 20262253273 20535747392 23395591408 23711378432 26737818752 30461374048 31124492141 34812998912 35937557936 40524506546 41071494784 46791182816 53475637504 60922748096 62248984282 69625997824 71875115872 81049013092 82142989568 93582365632 106951275008 121845496192 124497968564 139251995648 141835772911 143750231744 162098026184 164285979136 187164731264 213902550016 217871444987 243690992384 248995937128 283671545822 287500463488 324196052368 328571958272 374329462528 435742889974 487381984768 497991874256 567343091644 575000926976 648392104736 748658925056 871485779948 974763969536 995983748512 1134686183288 1150001853952 1296784209472 1497317850112 1742971559896 1991967497024 2269372366576 2300003707904 2593568418944 3019075737677 3485943119792 3983934994048 4538744733152 5187136837888 6038151475354 6971886239584 7967869988096 9077489466304 10374273675776 12076302950708 13943772479168 15935739976192 18154978932608 20748547351552 21133530163739 24152605901416 27887544958336 31871479952384 36309957865216 42267060327478 48305211802832 55775089916672 72619915730432 84534120654956 96610423605664 111550179833344 145239831460864 169068241309912 193220847211328 223100359666688 338136482619824 386441694422656 676272965239648 772883388845312 1352545930479296 1545766777690624 2705091860958592 3091533555381248 5410183721917184 10820367443834368 21640734887668736
• Sum of all divisors σ(n): 50292924020304000
• Sum of proper divisors (its aliquot sum) s(n): 28652189132635264
• 21640734887668736 is an abundant number, because the sum of its proper divisors (28652189132635264) is greater than itself. Its abundance is 7011454244966528

Bases of 21640734887668736

• Binary: 1001100111000100010001000111011101010000110110000000000₂
• Hexadecimal: 0x4CE2223BA86C00
• Base-36: 5X300D0WFSW

Squares and roots of 21640734887668736

• 21640734887668736 squared (21640734887668736²) is 468321406478362779740232871837696
• 21640734887668736 cubed (21640734887668736³) is 10134819399818396602249468718954591998681605472256
• The square root of 21640734887668736 is 147107902.1931477887
• The cube root of 21640734887668736 is 278670.2891529967

Scales and comparisons

• 21,640,734,887,668,736 seconds is equal to 688,108,430 years, 12 weeks, 3 days, 6 hours, 38 minutes, 56 seconds.
• To count from 1 to 21,640,734,887,668,736 would take you about two billion, sixty-four million, three hundred twenty-five thousand, two hundred ninety 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 21640734887668736 cubic inches would be around 23222.5 feet tall.

Recreational maths with 21640734887668736

• 21640734887668736 backwards is 63786678843704612
• The number of decimal digits it has is: 17
• The sum of 21640734887668736's digits is 86
• More coming soon!