20721704840545464

Names of 20721704840545464

• Cardinal: 20721704840545464 can be written as Twenty quadrillion, seven hundred twenty-one trillion, seven hundred four billion, eight hundred forty million, five hundred forty-five thousand, four hundred sixty-four.

Scientific notation

• Scientific notation: 2.0721704840545464 × 10¹⁶

Factors of 20721704840545464

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 56184

Divisors of 20721704840545464

• Number of divisors d(n): 504
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 23 24 27 28 36 42 46 49 54 56 63 69 72 81 84 92 98 108 126 138 147 161 162 168 184 189 196 207 216 243 252 276 294 322 324 378 392 414 441 483 486 504 552 567 588 621 644 648 729 756 828 882 966 972 1127 1134 1176 1242 1288 1323 1449 1458 1512 1656 1701 1764 1863 1932 1944 2254 2268 2484 2646 2898 2916 3381 3402 3528 3726 3864 3969 4347 4508 4536 4968 5103 5292 5589 5796 5832 6762 6804 7452 7938 8694 9016 10143 10206 10584 11178 11592 11907 13041 13524 13608 14904 15876 16767 17388 20286 20412 22356 23814 26082 27048 30429 31752 33534 34776 35721 39123 40572 40824 44712 47628 52164 56149 60858 67068 71442 78246 81144 91287 95256 104328 112298 117369 121716 134136 142884 156492 168447 182574 224596 234738 243432 273861 285768 312984 336894 365148 393043 449192 469476 505341 547722 673788 730296 786086 821583 938952 1010682 1095444 1179129 1291427 1347576 1516023 1572172 1643166 2021364 2190888 2358258 2582854 2751301 3032046 3144344 3286332 3537387 3874281 4042728 4548069 4716516 5165708 5502602 6064092 6572664 7074774 7748562 8253903 9039989 9096138 9433032 10331416 10612161 11005204 11622843 12128184 13644207 14149548 15497124 16507806 18079978 18192276 21224322 22010408 23245686 24761709 27119967 27288414 28299096 30994248 31836483 33015612 34868529 36159956 36384552 40932621 42448644 46491372 49523418 54239934 54576828 63279923 63672966 66031224 69737058 72319912 74285127 81359901 81865242 84897288 92982744 95509449 99046836 104605587 108479868 109153656 126559846 127345932 139474116 148570254 162719802 163730484 189839769 191018898 198093672 209211174 216959736 222855381 244079703 253119692 254691864 278948232 286528347 297140508 313816761 325439604 327460968 379679538 382037796 418422348 445710762 488159406 506239384 569519307 573056694 594281016 627633522 650879208 668566143 732239109 759359076 764075592 836844696 891421524 941450283 976318812 1139038614 1146113388 1255267044 1337132286 1464478218 1518718152 1708557921 1782843048 1882900566 1952637624 2005698429 2196717327 2278077228 2292226776 2510534088 2674264572 2928956436 3152710201 3417115842 3765801132 4011396858 4393434654 4556154456 5125673763 5348529144 5857912872 6305420402 6590151981 6834231684 7531602264 8022793716 8786869308 9458130603 10251347526 12610840804 13180303962 13668463368 15377021289 16045587432 17573738616 18916261206 20502695052 22068971407 25221681608 26360607924 28374391809 30754042578 37832522412 41005390104 44137942814 46131063867 52721215848 56748783618 61508085156 66206914221 72512334623 75665044824 85123175427 88275885628 92262127734 113497567236 123016170312 132413828442 145024669246 154482799849 170246350854 176551771256 184524255468 198620742663 217537003869 226995134472 255369526281 264827656884 290049338492 308965599698 340492701708 369048510936 397241485326 435074007738 463448399547 507586342361 510739052562 529655313768 580098676984 595862227989 617931199396 652611011607 680985403416 766108578843 794482970652 870148015476 926896799094 1015172684722 1021478105124 1191724455978 1235862398792 1305222023214 1390345198641 1522759027083 1532217157686 1588965941304 1740296030952 1787586683967 1853793598188 1957833034821 2030345369444 2042956210248 2298325736529 2383448911956 2610444046428 2780690397282 3045518054166 3064434315372 3553104396527 3575173367934 3707587196376 3915666069642 4060690738888 4171035595923 4568277081249 4596651473058 4766897823912 5220888092856 5362760051901 5561380794564 5873499104463 6091036108332 6128868630744 7106208793054 7150346735868 7831332139284 8342071191846 9136554162498 9193302946116 10659313189581 10725520103802 11122761589128 11746998208926 12182072216664 12513106787769 13704831243747 14212417586108 14300693471736 15662664278568 16088280155703 16684142383692 17620497313389 18273108324996 18386605892232 21318626379162 21451040207604 23493996417852 25026213575538 27409662487494 28424835172216 31977939568743 32176560311406 33368284767384 35240994626778 36546216649992 37539320363307 41114493731241 42637252758324 42902080415208 46987992835704 50052427151076 52861491940167 54819324974988 63955879137486 64353120622812 70481989253556 75078640726614 82228987462482 85274505516648 95933818706229 100104854302152 105722983880334 109638649949976 112617961089921 123343481193723 127911758274972 128706241245624 140963978507112 150157281453228 164457974924964 191867637412458 211445967760668 225235922179842 246686962387446 255823516549944 287801456118687 300314562906456 328915949849928 370030443581169 383735274824916 422891935521336 450471844359684 493373924774892 575602912237374 740060887162338 767470549649832 863404368356061 900943688719368 986747849549784 1151205824474748 1480121774324676 1726808736712122 2302411648949496 2590213105068183 2960243548649352 3453617473424244 5180426210136366 6907234946848488 10360852420272732 20721704840545464
• Sum of all divisors σ(n): 70711378716114360
• Sum of proper divisors (its aliquot sum) s(n): 49989673875568896
• 20721704840545464 is an abundant number, because the sum of its proper divisors (49989673875568896) is greater than itself. Its abundance is 29267969035023432

Bases of 20721704840545464

• Binary: 1001001100111100100011111100000001010010100010010111000₂
• Hexadecimal: 0x499E47E02944B8
• Base-36: 5O18BSBHVI0

Squares and roots of 20721704840545464

• 20721704840545464 squared (20721704840545464²) is 429389051498685313617989050975296
• 20721704840545464 cubed (20721704840545464³) is 8897673186917532986421480514569120623333828857344
• The square root of 20721704840545464 is 143950355.4721052573
• The cube root of 20721704840545464 is 274668.2714750561

Scales and comparisons

• 20,721,704,840,545,464 seconds is equal to 658,886,117 years, 25 weeks, 2 days, 13 hours, 44 minutes, 24 seconds.
• To count from 1 to 20,721,704,840,545,464 would take you about one billion, nine hundred seventy-six million, six hundred fifty-eight thousand, three hundred fifty-two 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 20721704840545464 cubic inches would be around 22889 feet tall.

Recreational maths with 20721704840545464

• 20721704840545464 backwards is 46454504840712702
• 20721704840545464 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 20721704840545464's digits is 63
• More coming soon!