21643540072
21,643,540,072 is an even composite number composed of seven prime numbers multiplied together.
21643540072 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of five hundred twelve divisors.
Prime factorization of 21643540072:
23 × 7 × 113 × 17 × 19 × 29 × 31
(2 × 2 × 2 × 7 × 11 × 11 × 11 × 17 × 19 × 29 × 31)See below for interesting mathematical facts about the number 21643540072 from the Numbermatics database.
Names of 21643540072
- Cardinal: 21643540072 can be written as Twenty-one billion, six hundred forty-three million, five hundred forty thousand and seventy-two.
Scientific notation
- Scientific notation: 2.1643540072 × 1010
Factors of 21643540072
Divisors of 21643540072
- Number of divisors d(n): 512
-
Complete list of divisors:
1 2 4 7 8 11 14 17 19 22 28 29 31 34 38 44 56 58 62 68 76 77 88 116 119 121 124 133 136 152 154 187 203 209 217 232 238 242 248 266 308 319 323 341 374 406 418 434 476 484 493 527 532 551 589 616 638 646 682 748 812 836 847 868 899 952 968 986 1054 1064 1102 1178 1276 1292 1309 1331 1364 1463 1496 1624 1672 1694 1736 1798 1972 2057 2108 2204 2233 2261 2299 2356 2387 2552 2584 2618 2662 2728 2926 3388 3451 3509 3553 3596 3689 3751 3857 3944 4114 4123 4216 4408 4466 4522 4598 4712 4774 5236 5324 5423 5797 5852 6061 6293 6479 6776 6902 7018 7106 7192 7378 7502 7714 8228 8246 8932 9044 9196 9317 9367 9548 9889 10013 10472 10648 10846 11594 11704 12122 12586 12958 13804 14036 14212 14399 14756 15004 15283 15428 16093 16456 16492 17081 17864 18088 18392 18634 18734 19096 19778 20026 21692 22627 23188 24244 24563 24871 25172 25289 25916 26257 27608 28072 28424 28798 29512 30008 30566 30856 32186 32984 34162 37268 37468 37961 38599 39083 39556 40052 40579 41261 42427 43384 45254 45353 46376 48488 49126 49742 50344 50578 51832 52514 57596 59653 61132 63767 64372 65569 66671 68324 69223 70091 71269 74536 74936 75922 77198 78166 79112 80104 81158 82522 84854 90508 90706 98252 99484 101156 103037 105028 106981 108779 110143 115192 119306 119567 122264 127534 128744 131138 133342 136648 138446 140182 142538 151844 154396 156332 158389 162316 165044 168113 169708 177023 181016 181412 187891 196504 198968 202312 206074 210056 213962 217558 220286 238612 239134 255068 262276 266684 270193 273581 276892 280364 285076 288827 290377 303688 308792 312664 316778 324632 330088 336226 339416 354046 362824 375782 412148 417571 427924 429913 435116 440572 446369 466697 477224 478268 498883 510136 524552 533368 540386 547162 553784 560728 570152 577654 580754 633556 656183 672452 701437 708092 721259 733381 751564 761453 771001 783959 824296 835142 855848 859826 870232 881144 892738 933394 956536 997766 1080772 1094324 1133407 1155308 1161508 1176791 1196569 1211573 1267112 1312366 1315237 1344904 1402874 1416184 1442518 1466762 1503128 1522906 1542002 1567918 1670284 1719652 1785476 1849243 1866788 1995532 2032639 2066801 2161544 2188648 2266814 2310616 2323016 2353582 2393138 2423146 2624732 2630474 2805748 2885036 2933524 3009391 3045812 3084004 3135836 3194147 3340568 3439304 3570952 3698486 3733576 3991064 4065278 4133602 4533628 4593281 4707164 4786276 4846292 4910059 5133667 5249464 5260948 5487713 5611496 5770072 5867048 6018782 6091624 6168008 6271672 6388294 7396972 7933849 8130556 8267204 8375983 8481011 9067256 9186562 9414328 9572552 9692584 9820118 10267334 10521896 10975426 12037564 12467477 12776588 12944701 13327303 14467607 14793944 15867698 16261112 16534408 16751966 16962022 18373124 19640236 20341673 20534668 21950852 22359029 22734811 24075128 24934954 25553176 25889402 26654606 28935214 31735396 33503932 33924044 35135617 36746248 39280472 40683346 41069336 43901704 44718058 45469622 49869908 51778804 53309212 57870428 63470792 67007864 67848088 70271234 81366692 87272339 89436116 90939244 93291121 99739816 103557608 106618424 115740856 140542468 142391711 159143677 162733384 174544678 178872232 181878488 186582242 245949319 281084936 284783422 318287354 349089356 373164484 386491787 491898638 569566844 636574708 698178712 746328968 772983574 983797276 1139133688 1273149416 1545967148 1967594552 2705442509 3091934296 5410885018 10821770036 21643540072
- Sum of all divisors σ(n): 60715008000
- Sum of proper divisors (its aliquot sum) s(n): 39071467928
- 21643540072 is an abundant number, because the sum of its proper divisors (39071467928) is greater than itself. Its abundance is 17427927856
Bases of 21643540072
- Binary: 101000010100000111000110110011010002
- Hexadecimal: 0x50A0E3668
- Base-36: 9XY06EG
Squares and roots of 21643540072
- 21643540072 squared (216435400722) is 468442826848269765184
- 21643540072 cubed (216435400723) is 10138761094331484126625934453248
-
The
square root of 21643540072 is 147117.4363289409 -
The
cube root of 21643540072 is 2786.8232952899
Scales and comparisons
How big is 21643540072?- 21,643,540,072 seconds is equal to 688 years, 10 weeks, 1 day, 22 hours, 27 minutes, 52 seconds.
-
To count from 1 to 21,643,540,072 would take you about one thousand, three hundred seventy-six 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 21643540072 cubic inches would be around 232.2 feet tall.
Recreational maths with 21643540072
- 21643540072 backwards is 27004534612
- 21643540072 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21643540072's digits is 34
- More coming soon!
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