21121987387072

Names of 21121987387072

• Cardinal: 21121987387072 can be written as Twenty-one trillion, one hundred twenty-one billion, nine hundred eighty-seven million, three hundred eighty-seven thousand and seventy-two.

Scientific notation

• Scientific notation: 2.1121987387072 × 10¹³

Factors of 21121987387072

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 226

Divisors of 21121987387072

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 4 8 11 13 16 19 22 26 32 38 44 52 64 76 88 104 121 143 152 169 176 181 208 209 242 247 286 304 338 352 361 362 416 418 484 494 572 608 676 704 722 724 832 836 968 988 1144 1216 1352 1444 1448 1573 1672 1859 1936 1976 1991 2197 2288 2299 2353 2704 2717 2888 2896 3146 3211 3344 3439 3718 3872 3952 3971 3982 4394 4576 4598 4693 4706 5408 5434 5776 5792 6292 6422 6688 6859 6878 7436 7744 7904 7942 7964 8788 9152 9196 9386 9412 10816 10868 11552 11584 12584 12844 13376 13718 13756 14872 15808 15884 15928 17576 18392 18772 18824 20449 21736 21901 23104 24167 25168 25688 25883 27436 27512 29744 29887 30589 31768 31856 35152 35321 36784 37544 37648 37829 40898 41743 43472 43681 43802 44707 48334 50336 51376 51623 51766 54872 55024 59488 59774 61009 61178 63536 63712 65341 70304 70642 73568 75088 75296 75449 75658 81796 83486 86944 87362 87604 89167 89414 96668 100672 102752 103246 103532 109744 110048 118976 119548 122018 122356 127072 127424 130682 140608 141284 147136 150176 150592 150898 151316 163592 166972 173888 174724 175208 178334 178828 193336 205504 206492 207064 219488 220096 239096 244036 244712 254144 261364 265837 282568 284713 300352 301796 302632 327184 333944 336479 349448 350416 356668 357656 386672 388531 397657 412984 414128 416119 438976 459173 478192 488072 489424 491777 522728 531674 565136 567853 569426 581191 603592 605264 654368 667888 671099 672958 698896 700832 713336 715312 718751 773344 777062 793117 795314 825968 828256 829939 832238 849433 918346 956384 976144 978848 980837 983554 1045456 1063348 1130272 1135706 1138852 1159171 1162382 1207184 1210528 1241479 1308736 1335776 1342198 1345916 1397792 1401664 1426672 1430624 1437502 1546688 1554124 1586234 1590628 1651936 1656512 1659878 1664476 1698866 1836692 1912768 1952288 1957696 1961674 1967108 2090912 2126696 2260544 2271412 2277704 2318342 2324764 2414368 2421056 2482958 2671552 2684396 2691832 2795584 2853344 2861248 2875004 3108248 3172468 3181256 3303872 3319756 3328952 3397732 3673384 3701269 3904576 3923348 3934216 4181824 4253392 4374227 4542824 4555408 4636684 4649528 4828736 4965916 5050903 5368792 5383664 5409547 5706688 5750008 6216496 6344936 6362512 6393101 6639512 6657904 6795464 7346768 7382089 7402538 7555483 7846696 7868432 7906261 8506784 8724287 8748454 9085648 9110816 9273368 9299056 9343763 9931832 10101806 10737584 10767328 10789207 10819094 11042629 11500016 12432992 12689872 12725024 12750881 12786202 13279024 13315808 13590928 13656269 14693536 14764178 14805076 15069223 15110966 15693392 15736864 15812522 16139227 17013568 17448574 17496908 18171296 18221632 18546736 18598112 18687526 19863664 20203612 21475168 21534656 21578414 21638188 22085258 23000032 24865984 25379744 25450048 25501762 25572404 26558048 26631616 27181856 27312538 29387072 29528356 29610152 30138446 30221932 31386784 31473728 31625044 32278454 34897148 34993816 36342592 37093472 37196224 37375052 39727328 40407224 42950336 43156828 43276376 44170516 46000064 48116497 50759488 51003524 51144808 53116096 54363712 54625076 59056712 59220304 60276892 60443864 62773568 63250088 64556908 69794296 69987632 70324111 74186944 74750104 79454656 80814448 83110313 86313656 86552752 88341032 95967157 96232994 102007048 102289616 102781393 109250152 118113424 118440608 120553784 120887728 121468919 126500176 129113816 139588592 139975264 140259691 140648222 143554177 149500208 150218959 161628896 165761453 166220626 172627312 173105504 176682064 177531497 191934314 192465988 204014096 204579232 205562786 209809951 218500304 236226848 236881216 241107568 241775456 242937838 253000352 258227632 279177184 279950528 280519382 281296444 287108354 299000416 300437918 323257792 331522906 332441252 345254624 346211008 353364128 355062994 383868628 384931976 408028192 409158464 411125572 419619902 437000608 472453696 482215136 483550912 485875676 506000704 516455264 558354368 561038764 562592888 574216708 598000832 600875836 663045812 664882504 690509248 706728256 710125988 767737256 769863952 816056384 822251144 839239804 874001216 914213443 964430272 971751352 1032910528 1122077528 1125185776 1148433416 1201751672 1326091624 1329765008 1336158109 1420251976 1535474512 1539727904 1579095947 1644502288 1678479608 1823375983 1828426886 1943502704 1952846467 2244155056 2250371552 2296866832 2307909461 2403503344 2652183248 2659530016 2672316218 2727529363 2840503952 3070949024 3079455808 3158191894 3289004576 3356959216 3646751966 3656853772 3887005408 3905692934 4488310112 4500743104 4593733664 4615818922 4807006688 5304366496 5319060032 5344632436 5455058726 5681007904 6141898048 6316383788 6578009152 6713918432 7293503932 7313707544 7774010816 7811385868 8976620224 9187467328 9231637844 9614013376 10608732992 10689264872 10910117452 11362015808 12632767576 13427836864 14587007864 14627415088 15622771736 17370055417 18463275688 21378529744 21820234904 25265535152 25387004071 29174015728 29254830176 30002822993 31245543472 34740110834 36926551376 42757059488 43640469808 50531070304 50774008142 58348031456 58509660352 60005645986 62491086944 69480221668 73853102752 85514118976 87280939616 101062140608 101548016284 116696062912 120011291972 124982173888 138960443336 147706205504 174561879232 203096032568 240022583944 277920886672 330031052923 406192065136 480045167888 555841773344 660062105846 812384130272 960090335776 1111683546688 1320124211692 1624768260544 1920180671552 2640248423384 5280496846768 10560993693536 21121987387072
• Sum of all divisors σ(n): 52971500254400
• Sum of proper divisors (its aliquot sum) s(n): 31849512867328
• 21121987387072 is an abundant number, because the sum of its proper divisors (31849512867328) is greater than itself. Its abundance is 10727525480256

Bases of 21121987387072

• Binary: 100110011010111011000100011100001111011000000₂
• Hexadecimal: 0x1335D88E1EC0
• Base-36: 7HJB1XPZ4

Squares and roots of 21121987387072

• 21121987387072 squared (21121987387072²) is 446138351179628653952733184
• 21121987387072 cubed (21121987387072³) is 9423328626505214961418351269708946997248
• The square root of 21121987387072 is 4595866.3369458429
• The cube root of 21121987387072 is 27642.5599184685

Scales and comparisons

• 21,121,987,387,072 seconds is equal to 671,613 years, 44 weeks, 6 days, 14 hours, 37 minutes, 52 seconds.
• To count from 1 to 21,121,987,387,072 would take you about one million, six hundred seventy-nine thousand and thirty-four 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 21121987387072 cubic inches would be around 2303.5 feet tall.

Recreational maths with 21121987387072

• 21121987387072 backwards is 27078378912112
• The number of decimal digits it has is: 14
• The sum of 21121987387072's digits is 58
• More coming soon!