20821368478822704

Names of 20821368478822704

• Cardinal: 20821368478822704 can be written as Twenty quadrillion, eight hundred twenty-one trillion, three hundred sixty-eight billion, four hundred seventy-eight million, eight hundred twenty-two thousand, seven hundred four.

Scientific notation

• Scientific notation: 2.0821368478822704 × 10¹⁶

Factors of 20821368478822704

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 158

Divisors of 20821368478822704

• Number of divisors d(n): 1200
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 36 39 43 48 52 54 72 78 86 97 104 108 117 129 144 156 169 172 194 208 216 234 258 291 312 338 344 351 387 388 432 468 507 516 559 582 624 676 688 702 774 776 873 936 1014 1032 1118 1161 1164 1261 1352 1404 1521 1548 1552 1677 1746 1849 1872 2028 2064 2197 2236 2322 2328 2522 2619 2704 2808 3042 3096 3354 3492 3698 3783 4056 4171 4394 4472 4563 4644 4656 5031 5044 5238 5547 5616 6084 6192 6591 6708 6984 7267 7396 7566 8112 8342 8788 8944 9126 9288 9409 10062 10088 10476 11094 11349 12168 12513 13182 13416 13968 14534 14792 15093 15132 16393 16641 16684 17576 18252 18576 18818 19773 20124 20176 20952 21801 22188 22698 24037 24336 25026 26364 26832 28227 28561 29068 29584 30186 30264 32786 33282 33368 34047 35152 36504 37539 37636 39546 40248 41904 43602 44376 45396 48074 49179 49923 50052 52728 54223 56454 57122 58136 59319 60372 60528 65403 65572 66564 66736 68094 72111 73008 75078 75272 79092 80496 84681 85683 87204 88752 90792 94471 96148 98358 99846 100104 105456 108446 112617 112908 114244 116272 118638 120744 122317 130806 131144 133128 136188 144222 147537 150156 150544 158184 162669 169362 171366 174408 179353 181584 188942 192296 196209 196716 199692 200208 213109 216333 216892 225234 225816 228488 237276 241488 244634 254043 257049 261612 262288 266256 272376 283413 288444 295074 300312 312481 316368 325338 338724 342732 348816 358706 366951 377884 384592 392418 393432 399384 404587 426218 432666 433784 442611 450468 451632 456976 474552 488007 489268 508086 514098 523224 538059 544752 566826 576888 590148 600624 624962 639327 648999 650676 677448 685464 704899 717412 733902 755768 771147 784836 786864 798768 809174 850239 852436 865332 867568 885222 900936 912673 937443 949104 976014 978536 1016172 1028196 1046448 1076118 1100853 1133652 1153776 1180296 1213761 1228123 1249924 1278654 1297998 1301352 1354896 1370928 1409798 1434824 1464021 1467804 1511536 1542294 1569672 1590121 1614177 1618348 1700478 1704872 1730664 1770444 1801872 1825346 1874886 1917981 1952028 1957072 2032344 2056392 2114697 2152236 2201706 2267304 2331589 2360592 2427522 2456246 2499848 2550717 2557308 2595996 2602704 2738019 2770417 2812329 2819596 2869648 2928042 2935608 3084588 3139344 3180242 3228354 3236696 3302559 3400956 3409744 3461328 3540888 3641283 3650692 3684369 3749772 3835962 3904056 4062253 4064688 4112784 4229394 4304472 4403412 4534608 4663178 4770363 4842531 4855044 4912492 4999696 5101434 5114616 5191992 5259631 5476038 5540834 5624658 5639192 5753943 5856084 5871216 6169176 6344091 6360484 6456708 6473392 6605118 6801912 6994767 7081776 7282566 7301384 7368738 7499544 7671924 7808112 8124506 8214057 8311251 8436987 8458788 8608944 8806824 9163687 9326356 9540726 9685062 9710088 9824984 10202868 10229232 10383984 10519262 10923849 10952076 11053107 11081668 11249316 11278384 11507886 11712168 11864749 12186759 12338352 12688182 12720968 12913416 13210236 13603824 13989534 14311089 14565132 14602768 14737476 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55099894356 56741549904 58045776984 59691552219 60751165572 61470012396 63999190008 65813762703 66632430384 69332455842 70563209496 72185132916 73466525808 76443476954 78200560659 79383610683 79588736292 81001554096 81960016528 85112324856 86221130983 87751683604 91126748358 92205018594 92443274456 95998785012 96246843888 97702905456 103998683763 104267414212 105844814244 106118315056 108277699374 110199788712 114665215431 116091553968 119383104438 121502331144 122940024792 127998380016 131627525406 138307527891 138664911684 141126418992 144370265832 152886953908 156401121318 158767221366 159177472584 170224649712 172442261966 175503367208 179074656657 182253496716 184410037188 184886548912 191997570024 197441288109 207997367526 208534828424 211689628488 216555398748 220399577424 229330430862 234601681977 238766208876 243004662288 245880049584 258663392949 263255050812 276615055782 277329823368 285192971713 288740531664 305773907816 311996051289 312802242636 317534442732 318354945168 343995646293 344884523932 351006734416 358149313314 364506993432 368820074376 383995140048 394882576218 415994735052 417069656848 423379256976 433110797496 458660861724 469203363954 477532417752 496882600201 517326785898 526510101624 553230111564 554659646736 570385943426 592323864327 611547815632 623992102578 625604485272 635068885464 687991292586 689769047864 703805045931 716298626628 729013986864 737640148752 775990178847 789765152436 831989470104 855578915139 866221594992 917321723448 938406727908 955064835504 993765200402 1031986938879 1034653571796 1053020203248 1106460223128 1120874702779 1140771886852 1184647728654 1247984205156 1251208970544 1270137770928 1375982585172 1379538095728 1407610091862 1432597253256 1490647800603 1551980357694 1579530304872 1663978940208 1711157830278 1834643446896 1876813455816 1987530400804 2063973877758 2069307143592 2212920446256 2241749405558 2281543773704 2327970536541 2369295457308 2495968410312 2566736745417 2751965170344 2815220183724 2865194506512 2981295601206 3103960715388 3159060609744 3362624108337 3422315660556 3707508632269 3753626911632 3975060801608 4127947755516 4138614287184 4471943401809 4483498811116 4563087547408 4655941073082 4738590914616 4991936820624 5133473490834 5503930340688 5630440367448 5962591202412 6207921430776 6725248216674 6844631321112 7415017264538 7700210236251 7950121603216 8255895511032 8943886803618 8966997622232 9311882146164 9477181829232 10087872325011 10266946981668 11122525896807 11260880734896 11925182404824 12415842861552 13415830205427 13450496433348 13689262642224 14830034529076 15400420472502 16511791022064 17887773607236 17933995244464 18623764292328 20175744650022 20533893963336 22245051793614 23850364809648 26831660410854 26900992866696 29660069058152 30263616975033 30800840945004 33367577690421 35775547214472 37247528584656 40351489300044 41067787926672 44490103587228 48197612219497 53663320821708 53801985733392 59320138116304 60527233950066 61601681890008 66735155380842 71551094428944 80702978600088 88980207174456 96395224438994 100102733071263 107326641643416 121054467900132 123203363780016 133470310761684 144592836658491 161405957200176 177960414348912 192790448877988 200205466142526 214653283286832 242108935800264 266940621523368 289185673316982 385580897755976 400410932285052 433778509975473 484217871600528 533881243046736 578371346633964 771161795511952 800821864570104 867557019950946 1156742693267928 1301335529926419 1601643729140208 1735114039901892 2313485386535856 2602671059852838 3470228079803784 5205342119705676 6940456159607568 10410684239411352 20821368478822704
• Sum of all divisors σ(n): 66976483843701600
• Sum of proper divisors (its aliquot sum) s(n): 46155115364878896
• 20821368478822704 is an abundant number, because the sum of its proper divisors (46155115364878896) is greater than itself. Its abundance is 25333746886056192

Bases of 20821368478822704

• Binary: 1001001111110001110110010011111111010101111000100110000₂
• Hexadecimal: 0x49F8EC9FEAF130
• Base-36: 5P0K4MOHKC0

Squares and roots of 20821368478822704

• 20821368478822704 squared (20821368478822704²) is 433529385330911682749325865871616
• 20821368478822704 cubed (20821368478822704³) is 9026675078372426469628032324453922764476489969664
• The square root of 20821368478822704 is 144296113.8729061685
• The cube root of 20821368478822704 is 275107.9178816255

Scales and comparisons

• 20,821,368,478,822,704 seconds is equal to 662,055,112 years, 47 weeks, 11 hours, 38 minutes, 24 seconds.
• To count from 1 to 20,821,368,478,822,704 would take you about one billion, nine hundred eighty-six million, one hundred sixty-five thousand, three hundred thirty-eight 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 20821368478822704 cubic inches would be around 22925.7 feet tall.

Recreational maths with 20821368478822704

• 20821368478822704 backwards is 40722887486312802
• 20821368478822704 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 20821368478822704's digits is 72
• More coming soon!