21218887872
21,218,887,872 is an even composite number composed of six prime numbers multiplied together.
21218887872 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of six hundred seventy-two divisors.
Prime factorization of 21218887872:
26 × 33 × 72 × 13 × 37 × 521
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 7 × 7 × 13 × 37 × 521)See below for interesting mathematical facts about the number 21218887872 from the Numbermatics database.
Names of 21218887872
- Cardinal: 21218887872 can be written as Twenty-one billion, two hundred eighteen million, eight hundred eighty-seven thousand, eight hundred seventy-two.
Scientific notation
- Scientific notation: 2.1218887872 × 1010
Factors of 21218887872
Divisors of 21218887872
- Number of divisors d(n): 672
-
Complete list of divisors:
1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 27 28 32 36 37 39 42 48 49 52 54 56 63 64 72 74 78 84 91 96 98 104 108 111 112 117 126 144 147 148 156 168 182 189 192 196 208 216 222 224 234 252 259 273 288 294 296 312 333 336 351 364 378 392 416 432 441 444 448 468 481 504 518 521 546 576 588 592 624 637 666 672 702 728 756 777 784 819 832 864 882 888 936 962 999 1008 1036 1042 1092 1176 1184 1248 1274 1323 1332 1344 1404 1443 1456 1512 1554 1563 1568 1638 1728 1764 1776 1813 1872 1911 1924 1998 2016 2072 2084 2184 2331 2352 2368 2457 2496 2548 2646 2664 2808 2886 2912 3024 3108 3126 3136 3276 3367 3528 3552 3626 3647 3744 3822 3848 3996 4032 4144 4168 4329 4368 4662 4689 4704 4914 5096 5292 5328 5439 5616 5733 5772 5824 6048 6216 6252 6552 6734 6773 6993 7056 7104 7252 7294 7488 7644 7696 7992 8288 8336 8658 8736 9324 9378 9408 9828 10101 10192 10584 10656 10878 10941 11232 11466 11544 12096 12432 12504 12987 13104 13468 13546 13986 14067 14112 14504 14588 15288 15392 15984 16317 16576 16672 17199 17316 17472 18648 18756 19277 19656 20202 20319 20384 21168 21312 21756 21882 22464 22932 23088 23569 24864 25008 25529 25974 26208 26936 27092 27972 28134 28224 29008 29176 30303 30576 30784 31968 32634 32823 33344 34398 34632 37296 37512 38554 39312 40404 40638 40768 42336 43512 43764 45864 46176 47138 47411 48951 49728 50016 51058 51948 52416 53872 54184 55944 56268 57831 58016 58352 60606 60957 61152 63936 65268 65646 68796 69264 70707 74592 75024 76587 77108 78624 80808 81276 84672 87024 87528 90909 91728 92352 94276 94822 97902 98469 100032 102116 103896 107744 108368 111888 112536 115662 116032 116704 121212 121914 122304 130536 131292 134939 137592 138528 141414 142233 149184 150048 153174 154216 157248 161616 162552 173493 174048 175056 181818 182871 183456 188552 189644 195804 196938 204232 207792 212121 215488 216736 223776 225072 229761 231324 233408 242424 243828 250601 261072 262584 269878 275184 277056 282828 284466 300096 306348 308432 323232 325104 331877 346986 348096 350112 363636 365742 366912 377104 379288 391608 393876 404817 408464 415584 424242 426699 433472 447552 450144 459522 462648 484848 487656 501202 520479 522144 525168 539756 550368 565656 568932 612696 616864 636363 646464 650208 663754 689283 693972 700224 727272 731484 751803 754208 758576 783216 787752 809634 816928 831168 848484 853398 900288 919044 925296 944573 969696 975312 995631 1002404 1040958 1044288 1050336 1079512 1100736 1131312 1137864 1214451 1225392 1233728 1272726 1280097 1300416 1327508 1378566 1387944 1454544 1462968 1503606 1508416 1517152 1566432 1575504 1619268 1633856 1696968 1706796 1754207 1838088 1850592 1889146 1939392 1950624 1991262 2004808 2081916 2100672 2159024 2255409 2262624 2275728 2428902 2450784 2545452 2560194 2655016 2757132 2775888 2833719 2909088 2925936 2986893 3007212 3034304 3132864 3151008 3238536 3393936 3413592 3508414 3643353 3676176 3701184 3778292 3901248 3982524 4009616 4163832 4318048 4510818 4525248 4551456 4857804 4901568 5090904 5120388 5262621 5310032 5514264 5551776 5667438 5818176 5851872 5973786 6014424 6302016 6477072 6766227 6787872 6827184 7016828 7286706 7352352 7556584 7965048 8019232 8327664 8501157 8636096 8960679 9021636 9102912 9715608 10181808 10240776 10525242 10620064 11028528 11103552 11334876 11703744 11947572 12028848 12279449 12954144 13532454 13575744 13654368 14033656 14573412 14704704 15113168 15787863 15930096 16038464 16655328 17002314 17921358 18043272 19431216 20363616 20481552 21050484 21240128 22057056 22669752 23895144 24057696 24558898 25503471 25908288 27064908 27308736 28067312 29146824 30226336 31575726 31860192 33310656 34004628 35842716 36086544 36838347 38862432 40727232 40963104 42100968 44114112 45339504 47363589 47790288 48115392 49117796 51006942 54129816 56134624 58293648 60452672 63151452 63720384 68009256 71685432 72173088 73676694 77724864 81926208 84201936 90679008 94727178 95580576 98235592 102013884 108259632 110515041 112269248 116587296 126302904 136018512 143370864 144346176 147353388 168403872 181358016 189454356 191161152 196471184 204027768 216519264 221030082 233174592 252605808 272037024 286741728 294706776 331545123 336807744 378908712 392942368 408055536 433038528 442060164 505211616 544074048 573483456 589413552 663090246 757817424 785884736 816111072 884120328 1010423232 1178827104 1326180492 1515634848 1632222144 1768240656 2357654208 2652360984 3031269696 3536481312 5304721968 7072962624 10609443936 21218887872
- Sum of all divisors σ(n): 80411970240
- Sum of proper divisors (its aliquot sum) s(n): 59193082368
- 21218887872 is an abundant number, because the sum of its proper divisors (59193082368) is greater than itself. Its abundance is 37974194496
Bases of 21218887872
- Binary: 100111100001011111010001000110000002
- Hexadecimal: 0x4F0BE88C0
- Base-36: 9QX6EO0
Squares and roots of 21218887872
- 21218887872 squared (212188878722) is 450241202524508688384
- 21218887872 cubed (212188878723) is 9553617591721993190709884878848
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The
square root of 21218887872 is 145667.0445639645 -
The
cube root of 21218887872 is 2768.4766990591
Scales and comparisons
How big is 21218887872?- 21,218,887,872 seconds is equal to 674 years, 36 weeks, 23 hours, 31 minutes, 12 seconds.
-
To count from 1 to 21,218,887,872 would take you about one thousand, three hundred forty-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 21218887872 cubic inches would be around 230.7 feet tall.
Recreational maths with 21218887872
- 21218887872 backwards is 27878881212
- 21218887872 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21218887872's digits is 54
- More coming soon!
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The information we have on file for 21218887872 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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