21664481029920

Names of 21664481029920

• Cardinal: 21664481029920 can be written as Twenty-one trillion, six hundred sixty-four billion, four hundred eighty-one million, twenty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.166448102992 × 10¹³

Factors of 21664481029920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 39638

Divisors of 21664481029920

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 30 32 36 38 40 45 48 57 60 61 72 76 80 90 95 96 114 120 122 144 152 160 171 180 183 190 228 240 244 285 288 304 305 331 342 360 366 380 456 480 488 549 570 608 610 662 684 720 732 760 855 912 915 976 993 1098 1140 1159 1220 1324 1368 1440 1464 1520 1655 1710 1824 1830 1952 1986 2196 2280 2318 2440 2648 2736 2745 2928 2979 3040 3310 3420 3477 3660 3972 4392 4560 4636 4880 4965 5296 5472 5490 5795 5856 5958 6289 6620 6840 6954 7320 7944 8784 9120 9272 9760 9930 10431 10592 10980 11590 11916 12578 13240 13680 13908 14640 14895 15888 17385 17568 18544 18867 19860 20191 20862 21960 23180 23832 25156 26480 27360 27816 29280 29790 31445 31776 34770 37088 37734 39217 39720 40382 41724 43920 46360 47664 50312 52155 52960 55632 56601 59580 60573 62890 69540 75468 78434 79440 80764 83448 87840 92720 94335 95328 100624 100955 104310 111264 113202 117651 119160 121146 125780 139080 150936 156868 158880 161528 166896 181719 185440 188670 196085 201248 201910 208620 226404 235302 238320 242292 251560 278160 283005 301872 302865 313736 323056 333792 352953 363438 377340 383629 392170 403820 417240 452808 470604 476640 484584 503120 556320 566010 588255 603744 605730 627472 646112 705906 726876 745123 754680 767258 784340 807640 834480 905616 908595 941208 969168 1006240 1132020 1150887 1176510 1211460 1254944 1411812 1453752 1490246 1509360 1534516 1568680 1615280 1668960 1764765 1811232 1817190 1882416 1918145 1938336 2235369 2264040 2301774 2353020 2392237 2422920 2823624 2907504 2980492 3018720 3069032 3137360 3230560 3452661 3529530 3634380 3725615 3764832 3836290 4470738 4528080 4603548 4706040 4784474 4845840 5647248 5754435 5815008 5960984 6138064 6274720 6706107 6905322 7059060 7176711 7268760 7451230 7672580 8941476 9056160 9207096 9412080 9568948 9691680 11176845 11294496 11508870 11921968 11961185 12276128 12980827 13412214 13810644 14118120 14353422 14537520 14902460 15345160 17263305 17882952 18414192 18824160 19137896 21530133 22353690 23017740 23843936 23922370 25961654 26824428 27621288 28236240 28706844 29075040 29804920 30690320 33530535 34526610 35765904 35883555 36828384 38275792 38942481 43060266 44707380 45452503 46035480 47844740 51923308 53648856 55242576 56472480 57413688 59609840 61380640 64904135 67061070 69053220 71531808 71767110 76551584 77884962 86120532 89414760 90905006 92070960 95689480 103846616 107297712 107650665 110485152 114827376 116827443 119219680 129808270 134122140 136357509 138106440 143534220 155769924 172241064 178829520 181810012 184141920 191378960 194712405 207693232 214595424 215301330 227262515 229654752 233654886 246635713 259616540 268244280 272715018 276212880 287068440 311539848 344482128 357659040 363620024 382757920 389424810 409072527 415386464 430602660 454525030 467309772 493271426 519233080 536488560 545430036 552425760 574136880 584137215 623079696 681787545 688964256 727240048 739907139 778849620 791830447 818145054 861205320 909050060 934619544 986542852 1038466160 1072977120 1090860072 1148273760 1168274430 1233178565 1246159392 1363575090 1454480096 1479814278 1557699240 1583660894 1636290108 1722410640 1818100120 1869239088 1973085704 2045362635 2076932320 2181720144 2219721417 2336548860 2375491341 2466357130 2727150180 2959628556 3115398480 3167321788 3272580216 3444821280 3636200240 3699535695 3738478176 3946171408 3959152235 4090725270 4363440288 4439442834 4673097720 4750982682 4932714260 5454300360 5919257112 6230796960 6334643576 6545160432 7126474023 7272400480 7399071390 7892342816 7918304470 8181450540 8878885668 9346195440 9501965364 9865428520 10908600720 11098607085 11838514224 11877456705 12669287152 13090320864 14252948046 14798142780 15044778493 15836608940 16362901080 17757771336 18692390880 19003930728 19730857040 21817201440 22197214170 23677028448 23754913410 25338574304 28505896092 29596285560 30089556986 31673217880 32725802160 35515542672 35632370115 38007861456 39461714080 44394428340 45134335479 47509826820 57011792184 59192571120 60179113972 63346435760 65451604320 71031085344 71264740230 75223892465 76015722912 88788856680 90268670958 95019653640 114023584368 118385142240 120358227944 126692871520 135403006437 142529480460 150447784930 177577713360 180537341916 190039307280 225671677395 228047168736 240716455888 270806012874 285058960920 300895569860 355155426720 361074683832 380078614560 451343354790 481432911776 541612025748 570117921840 601791139720 677015032185 722149367664 902686709580 1083224051496 1140235843680 1203582279440 1354030064370 1444298735328 1805373419160 2166448102992 2407164558880 2708060128740 3610746838320 4332896205984 5416120257480 7221493676640 10832240514960 21664481029920
• Sum of all divisors σ(n): 79337838303360
• Sum of proper divisors (its aliquot sum) s(n): 57673357273440
• 21664481029920 is an abundant number, because the sum of its proper divisors (57673357273440) is greater than itself. Its abundance is 36008876243520

Bases of 21664481029920

• Binary: 100111011010000100111101100100010111100100000₂
• Hexadecimal: 0x13B427B22F20
• Base-36: 7OGIWN7S0

Squares and roots of 21664481029920

• 21664481029920 squared (21664481029920²) is 469349738295763543935206400
• 21664481029920 cubed (21664481029920³) is 10168218501706485847886189518419775488000
• The square root of 21664481029920 is 4654511.9002877199
• The cube root of 21664481029920 is 27877.2179183631

Scales and comparisons

• 21,664,481,029,920 seconds is equal to 688,863 years, 25 weeks, 1 day, 5 hours, 12 minutes.
• To count from 1 to 21,664,481,029,920 would take you about one million, seven hundred twenty-two thousand, one hundred fifty-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 21664481029920 cubic inches would be around 2323.1 feet tall.

Recreational maths with 21664481029920

• 21664481029920 backwards is 02992018446612
• The number of decimal digits it has is: 14
• The sum of 21664481029920's digits is 54
• More coming soon!