21055856647645440
21,055,856,647,645,440 is an even composite number composed of five prime numbers multiplied together.
21055856647645440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of six hundred forty-eight divisors.
Prime factorization of 21055856647645440:
28 × 32 × 5 × 373 × 60072
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 37 × 37 × 37 × 6007 × 6007)See below for interesting mathematical facts about the number 21055856647645440 from the Numbermatics database.
Names of 21055856647645440
- Cardinal: 21055856647645440 can be written as Twenty-one quadrillion, fifty-five trillion, eight hundred fifty-six billion, six hundred forty-seven million, six hundred forty-five thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.105585664764544 × 1016
Factors of 21055856647645440
Divisors of 21055856647645440
- Number of divisors d(n): 648
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 37 40 45 48 60 64 72 74 80 90 96 111 120 128 144 148 160 180 185 192 222 240 256 288 296 320 333 360 370 384 444 480 555 576 592 640 666 720 740 768 888 960 1110 1152 1184 1280 1332 1369 1440 1480 1665 1776 1920 2220 2304 2368 2664 2738 2880 2960 3330 3552 3840 4107 4440 4736 5328 5476 5760 5920 6007 6660 6845 7104 8214 8880 9472 10656 10952 11520 11840 12014 12321 13320 13690 14208 16428 17760 18021 20535 21312 21904 23680 24028 24642 26640 27380 28416 30035 32856 35520 36042 41070 42624 43808 47360 48056 49284 50653 53280 54063 54760 60070 61605 65712 71040 72084 82140 85248 87616 90105 96112 98568 101306 106560 108126 109520 120140 123210 131424 142080 144168 151959 164280 175232 180210 192224 197136 202612 213120 216252 219040 222259 240280 246420 253265 262848 270315 288336 303918 328560 350464 360420 384448 394272 405224 426240 432504 438080 444518 455877 480560 492840 506530 525696 540630 576672 607836 657120 666777 720840 759795 768896 788544 810448 865008 876160 889036 911754 961120 985680 1013060 1051392 1081260 1111295 1153344 1215672 1314240 1333554 1441680 1519590 1537792 1577088 1620896 1730016 1752320 1778072 1823508 1922240 1971360 2000331 2026120 2162520 2222590 2279385 2306688 2431344 2628480 2667108 2883360 3039180 3154176 3241792 3333885 3460032 3556144 3647016 3844480 3942720 4000662 4052240 4325040 4445180 4558770 4613376 4862688 5256960 5334216 5766720 6078360 6483584 6667770 6920064 7112288 7294032 7688960 7885440 8001324 8104480 8223583 8650080 8890360 9117540 9725376 10001655 10668432 11533440 12156720 12967168 13335540 13840128 14224576 14588064 15770880 16002648 16208960 16447166 17300160 17780720 18235080 19450752 20003310 21336864 23066880 24313440 24670749 26671080 28449152 29176128 32005296 32417920 32894332 34600320 35561440 36084049 36470160 38901504 40006620 41117915 42673728 48626880 49341498 53342160 56898304 58352256 64010592 64835840 65788664 69200640 71122880 72168098 72940320 74012247 80013240 82235830 85347456 97253760 98682996 106684320 108252147 116704512 123353745 128021184 131577328 142245760 144336196 145880640 148024494 160026480 164471660 170694912 180420245 194507520 197365992 213368640 216504294 246707490 256042368 263154656 284491520 288672392 291761280 296048988 304272571 320052960 324756441 328943320 360840490 370061235 394731984 426737280 433008588 493414980 512084736 526309312 541260735 577344784 583522560 592097976 608545142 640105920 649512882 657886640 721680980 740122470 789463968 853474560 866017176 912817713 986829960 1052618624 1082521470 1154689568 1184195952 1217090284 1280211840 1299025764 1315773280 1335109813 1443361960 1480244940 1521362855 1578927936 1623782205 1732034352 1825635426 1973659920 2105237248 2165042940 2309379136 2368391904 2434180568 2560423680 2598051528 2631546560 2670219626 2738453139 2886723920 2960489880 3042725710 3157855872 3247564410 3464068704 3651270852 3947319840 4005329439 4330085880 4564088565 4618758272 4736783808 4868361136 5196103056 5263093120 5340439252 5476906278 5773447840 5920979760 6085451420 6315711744 6495128820 6675549065 6928137408 7302541704 7894639680 8010658878 8660171760 9128177130 9237516544 9473567616 9736722272 10392206112 10526186240 10680878504 10953812556 11546895680 11841959520 12015988317 12170902840 12990257640 13351098130 13692265695 13856274816 14605083408 15789279360 16021317756 17320343520 18256354260 18947135232 19473444544 20026647195 20784412224 21361757008 21907625112 23093791360 23683919040 24031976634 24341805680 25980515280 26702196260 27384531390 27712549632 29210166816 31578558720 32042635512 34640687040 36512708520 38946889088 40053294390 41568824448 42723514016 43815250224 46187582720 47367838080 48063953268 48683611360 49399063081 51961030560 53404392520 54769062780 58420333632 60079941585 64085271024 69281374080 73025417040 77893778176 80106588780 83137648896 85447028032 87630500448 94735676160 96127906536 97367222720 98798126162 103922061120 106808785040 109538125560 116840667264 120159883170 128170542048 138562748160 146050834080 148197189243 160213177560 170894056064 175261000896 192255813072 194734445440 197596252324 207844122240 213617570080 219076251120 233681334528 240319766340 246995315405 256341084096 292101668160 296394378486 320426355120 341788112128 350522001792 384511626144 389468890880 395192504648 415688244480 427235140160 438152502240 444591567729 480639532680 493990630810 512682168192 584203336320 592788756972 640852710240 701044003584 740985946215 769023252288 790385009296 854470280320 876305004480 889183135458 961279065360 987981261620 1025364336384 1168406672640 1185577513944 1281705420480 1481971892430 1538046504576 1580770018592 1708940560640 1752610008960 1778366270916 1827765333997 1922558130720 1975962523240 2222957838645 2371155027888 2563410840960 2963943784860 3076093009152 3161540037184 3505220017920 3556732541832 3655530667994 3845116261440 3951925046480 4445915677290 4742310055776 5126821681920 5483296001991 5927887569720 6323080074368 7113465083664 7311061335988 7690232522880 7903850092960 8891831354580 9138826669985 9484620111552 10966592003982 11855775139440 12646160148736 14226930167328 14622122671976 15380465045760 15807700185920 16449888005973 17783662709160 18277653339970 18969240223104 21933184007964 23711550278880 27416480009955 28453860334656 29244245343952 31615400371840 32899776011946 35567325418320 36555306679940 37938480446208 43866368015928 47423100557760 54832960019910 56907720669312 58488490687904 63230800743680 65799552023892 71134650836640 73110613359880 82249440029865 87732736031856 94846201115520 109665920039820 113815441338624 116976981375808 131599104047784 142269301673280 146221226719760 164498880059730 175465472063712 189692402231040 219331840079640 233953962751616 263198208095568 284538603346560 292442453439520 328997760119460 350930944127424 438663680159280 467907925503232 526396416191136 569077206693120 584884906879040 657995520238920 701861888254848 877327360318560 1052792832382272 1169769813758080 1315991040477840 1403723776509696 1754654720637120 2105585664764544 2339539627516160 2631982080955680 3509309441274240 4211171329529088 5263964161911360 7018618882548480 10527928323822720 21055856647645440
- Sum of all divisors σ(n): 74887138228626360
- Sum of proper divisors (its aliquot sum) s(n): 53831281580980920
- 21055856647645440 is an abundant number, because the sum of its proper divisors (53831281580980920) is greater than itself. Its abundance is 32775424933335480
Bases of 21055856647645440
- Binary: 10010101100111000110000101001111110110010101001000000002
- Hexadecimal: 0x4ACE30A7ECA900
- Base-36: 5RBOF09WE80
Squares and roots of 21055856647645440
- 21055856647645440 squared (210558566476454402) is 443349099166194666837895952793600
- 21055856647645440 cubed (210558566476454403) is 9335095076906137376000490654887372342830301184000
-
The
square root of 21055856647645440 is 145106363.2224494833 -
The
cube root of 21055856647645440 is 276136.8110130881
Scales and comparisons
How big is 21055856647645440?- 21,055,856,647,645,440 seconds is equal to 669,511,111 years, 18 weeks, 2 days, 22 hours, 24 minutes.
-
To count from 1 to 21,055,856,647,645,440 would take you about two billion, eight million, five hundred thirty-three thousand, three hundred 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 21055856647645440 cubic inches would be around 23011.4 feet tall.
Recreational maths with 21055856647645440
- 21055856647645440 backwards is 04454674665855012
- 21055856647645440 is a
Harshad number . - The number of decimal digits it has is: 17
- The sum of 21055856647645440's digits is 72
- More coming soon!
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The information we have on file for 21055856647645440 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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