21848721671647728

Names of 21848721671647728

• Cardinal: 21848721671647728 can be written as Twenty-one quadrillion, eight hundred forty-eight trillion, seven hundred twenty-one billion, six hundred seventy-one million, six hundred forty-seven thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1848721671647728 × 10¹⁶

Factors of 21848721671647728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 906

Divisors of 21848721671647728

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 13 16 18 22 24 26 33 36 39 44 48 52 66 72 78 88 99 104 117 121 132 143 144 156 169 176 198 208 234 242 264 286 312 338 363 396 429 468 484 507 528 572 624 676 726 792 858 877 936 968 1014 1089 1144 1287 1331 1352 1452 1521 1573 1584 1716 1754 1859 1872 1936 2028 2178 2288 2574 2631 2662 2704 2904 3042 3146 3432 3508 3718 3993 4056 4356 4719 5148 5262 5324 5577 5808 6084 6292 6864 7016 7436 7893 7986 8112 8712 9438 9647 10296 10524 10648 11154 11401 11979 12168 12584 14032 14157 14872 15786 15972 16731 17303 17424 18876 19294 20449 20592 21048 21296 22308 22802 23958 24336 25168 28314 28941 29744 31572 31944 33462 34203 34606 37752 38588 40898 42096 44616 45604 47916 51909 56628 57882 61347 63144 63888 66924 68406 69212 75504 77176 81796 86823 89232 91208 95832 102609 103818 106117 113256 115764 122694 125411 126288 133848 136812 138424 148213 154352 155727 163592 173646 182416 184041 191664 205218 207636 212234 224939 226512 231528 245388 250822 267696 273624 276848 296426 311454 318351 327184 347292 368082 376233 410436 415272 424468 444639 449878 463056 490776 501644 547248 592852 622908 636702 674817 694584 736164 752466 769129 820872 830544 848936 889278 899756 955053 981552 1003288 1128699 1167287 1185704 1245816 1273404 1333917 1349634 1379521 1389168 1472328 1504932 1538258 1630343 1641744 1697872 1778556 1799512 1910106 2006576 2024451 2257398 2307387 2334574 2371408 2491632 2546808 2667834 2699268 2759042 2944656 3009864 3076516 3260686 3501861 3557112 3599024 3820212 4048902 4138563 4514796 4614774 4669148 4891029 5093616 5335668 5398536 5518084 6019728 6153032 6521372 6922161 7003722 7114224 7640424 8097804 8277126 8460419 9029592 9229548 9338296 9782058 9998677 10505583 10671336 10797072 11036168 12306064 12415689 13042744 13844322 14007444 14673087 15174731 15280848 16195608 16554252 16920838 17933773 18059184 18459096 18676592 19564116 19997354 21011166 21342672 22072336 24831378 25381257 26085488 27688644 28014888 29346174 29996031 30349462 32391216 33108504 33841676 35867546 36918192 39128232 39994708 42022332 45524193 49662756 50762514 53801319 55377288 56029776 58692348 59992062 60698924 66217008 67683352 71735092 76143771 78256464 79989416 84044664 89988093 91048386 93064609 99325512 101525028 107602638 109985447 110754576 117384696 119984124 121397848 129982801 135366704 136572579 143470184 152287542 159978832 161403957 168089328 179976186 182096772 186129218 197271503 198651024 203050056 215205276 219970894 234769392 239968248 242795696 259965602 273145158 279193827 286940368 304575084 322807914 329956341 359952372 364193544 372258436 389948403 394543006 406100112 430410552 439941788 479936496 519931204 546290316 558387654 591814509 609150168 645615828 659912682 674526133 719904744 728387088 744516872 779896806 789086012 837581481 860821104 879883576 989869023 1023710699 1039862408 1092580632 1116775308 1169845209 1183629018 1209839917 1218300336 1291231656 1319825364 1349052266 1429810811 1439809488 1489033744 1559793612 1578172024 1675162962 1759767152 1775443527 1979738046 2023578399 2047421398 2079724816 2185161264 2233550616 2339690418 2367258036 2419679834 2582463312 2639650728 2698104532 2859621622 3071132097 3119587224 3156344048 3350325924 3550887054 3629519751 3959476092 4047156798 4094842796 4289432433 4467101232 4679380836 4734516072 4839359668 5279301456 5396209064 5719243244 6070735197 6142264194 6239174448 6700651848 7101774108 7259039502 7419787463 7918952184 8094313596 8189685592 8578864866 8768839729 9213396291 9358761672 9469032144 9678719336 10792418128 10888559253 11438486488 12141470394 12284528388 12868297299 13308239087 13401303696 14203548216 14518079004 14839574926 15727918921 15837904368 16188627192 16379371184 17157729732 17537679458 18426792582 18717523344 19357438672 21777118506 22259362389 22876972976 24282940788 24569056776 25736594598 26306519187 26616478174 28407096432 29036158008 29679149852 31455837842 32377254384 34315459464 35075358916 36853585164 39924717261 43554237012 44518724778 47183756763 48565881576 49138113552 51473189196 52613038374 53232956348 58072316016 59358299704 62911675684 66778087167 68630918928 70150717832 73707170328 78919557561 79849434522 81617662093 87108474024 89037449556 94367513526 96457237019 97131763152 102946378392 105226076748 106465912696 113994916477 118716599408 119774151783 125823351368 133556174334 140301435664 141551270289 147414340656 157839115122 159698869044 163235324186 173007108131 174216948048 178074899112 188735027052 192914474038 205892756784 210452153496 212931825392 227989832954 239548303566 244852986279 251646702736 267112348668 283102540578 289371711057 315678230244 319397738088 326470648372 341984749431 346014216262 356149798224 377470054104 385828948076 420904306992 455979665908 479096607132 489705972558 519021324393 534224697336 566205081156 578743422114 631356460488 638795476176 652941296744 683969498862 692028432524 734558958837 754940108208 771657896152 868115133171 897794283023 911959331816 958193214264 979411945116 1025954248293 1038042648786 1061029607209 1068449394672 1132410162312 1157486844228 1253944081247 1262712920976 1305882593488 1367938997724 1384056865048 1469117917674 1543315792304 1557063973179 1736230266342 1795588566046 1823918663632 1916386428528 1958823890232 2051908496586 2076085297572 2122059214418 2264820324624 2314973688456 2507888162494 2693382849069 2735877995448 2768113730096 2938235835348 3114127946358 3183088821627 3472460532684 3591177132092 3761832243741 3917647780464 4103816993172 4152170595144 4244118428836 4629947376912 5015776324988 5386765698138 5471755990896 5876471670696 6228255892716 6366177643254 6944921065368 7182354264184 7523664487482 8080148547207 8207633986344 8304341190288 8488236857672 9549266464881 10031552649976 10773531396276 11285496731223 11671325679299 11752943341392 12456511785432 12732355286508 13793384893717 13889842130736 14364708528368 15047328974964 16160297094414 16415267972688 16976473715344 19098532929762 20063105299952 21547062792552 22570993462446 23342651358598 24913023570864 25464710573016 27586769787434 30094657949928 32320594188828 35013977037897 38197065859524 41380154681151 43094125585104 45141986924892 46685302717196 50929421146032 55173539574868 60189315899856 64641188377656 70027954075794 76394131719048 82760309362302 90283973849784 93370605434392 105041931113691 110347079149736 124140464043453 129282376755312 140055908151588 151727233830887 152788263438096 165520618724604 180567947699568 186741210868784 210083862227382 220694158299472 248280928086906 280111816303176 303454467661774 331041237449208 420167724454764 455181701492661 496561856173812 560223632606352 606908935323548 662082474898416 840335448909528 910363402985322 993123712347624 1213817870647096 1365545104477983 1680670897819056 1820726805970644 1986247424695248 2427635741294192 2731090208955966 3641453611941288 5462180417911932 7282907223882576 10924360835823864 21848721671647728
• Sum of all divisors σ(n): 72910735602251040
• Sum of proper divisors (its aliquot sum) s(n): 51062013930603312
• 21848721671647728 is an abundant number, because the sum of its proper divisors (51062013930603312) is greater than itself. Its abundance is 29213292258955584

Bases of 21848721671647728

• Binary: 1001101100111110100101111101110000010001111000111110000₂
• Hexadecimal: 0x4D9F4BEE08F1F0
• Base-36: 5Z4Q4660T80

Squares and roots of 21848721671647728

• 21848721671647728 squared (21848721671647728²) is 477366638685129089822446527561984
• 21848721671647728 cubed (21848721671647728³) is 10429850823961410628378434284074732260959932772352
• The square root of 21848721671647728 is 147813130.9175464559
• The cube root of 21848721671647728 is 279560.2010258477

Scales and comparisons

• 21,848,721,671,647,728 seconds is equal to 694,721,766 years, 32 weeks, 3 days, 11 hours, 28 minutes, 48 seconds.
• To count from 1 to 21,848,721,671,647,728 would take you about two billion, eighty-four million, one hundred sixty-five thousand, two hundred ninety-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 21848721671647728 cubic inches would be around 23296.7 feet tall.

Recreational maths with 21848721671647728

• 21848721671647728 backwards is 82774617612784812
• The number of decimal digits it has is: 17
• The sum of 21848721671647728's digits is 81
• More coming soon!