21423561840
21,423,561,840 is an even composite number composed of seven prime numbers multiplied together.
21423561840 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 21423561840:
24 × 32 × 5 × 17 × 31 × 131 × 431
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 17 × 31 × 131 × 431)See below for interesting mathematical facts about the number 21423561840 from the Numbermatics database.
Names of 21423561840
- Cardinal: 21423561840 can be written as Twenty-one billion, four hundred twenty-three million, five hundred sixty-one thousand, eight hundred forty.
Scientific notation
- Scientific notation: 2.142356184 × 1010
Factors of 21423561840
Divisors of 21423561840
- Number of divisors d(n): 480
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 30 31 34 36 40 45 48 51 60 62 68 72 80 85 90 93 102 120 124 131 136 144 153 155 170 180 186 204 240 248 255 262 272 279 306 310 340 360 372 393 408 431 465 496 510 524 527 558 612 620 655 680 720 744 765 786 816 862 930 1020 1048 1054 1116 1179 1224 1240 1293 1310 1360 1395 1488 1530 1572 1581 1724 1860 1965 2040 2096 2108 2155 2227 2232 2358 2448 2480 2586 2620 2635 2790 3060 3144 3162 3448 3720 3879 3930 4061 4080 4216 4310 4454 4464 4716 4743 5172 5240 5270 5580 5895 6120 6288 6324 6465 6681 6896 7327 7440 7758 7860 7905 8122 8432 8620 8908 9432 9486 10344 10480 10540 11135 11160 11790 12183 12240 12648 12930 13361 13362 14654 15516 15720 15810 16244 17240 17816 18864 18972 19395 20043 20305 20688 21080 21981 22270 22320 23580 23715 24366 25296 25860 26722 26724 29308 31032 31440 31620 32488 33405 34480 35632 36549 36635 37944 38790 40083 40086 40610 42160 43962 44540 47160 47430 48732 51720 53444 53448 56461 58616 60915 62064 63240 64976 65943 66805 66810 69037 73098 73270 75888 77580 80166 80172 81220 87924 89080 94320 94860 97464 100215 103440 106888 106896 109905 112922 117232 120249 121830 126480 131886 133610 133620 138074 146196 146540 155160 160332 160344 162440 169383 175848 178160 182745 189720 194928 200415 200430 207111 213776 219810 225844 227137 240498 243660 263772 267220 267240 276148 282305 292392 293080 310320 320664 320688 324880 329715 338766 345185 351696 365490 379440 400830 400860 414222 439620 451688 454274 480996 487320 508149 527544 534440 534480 552296 564610 584784 586160 601245 621333 641328 659430 677532 681411 690370 730980 801660 801720 828444 846915 879240 903376 908548 959837 961992 974640 1016298 1035555 1055088 1068880 1104592 1129220 1135685 1202490 1242666 1318860 1355064 1362822 1380740 1461960 1603320 1603440 1656888 1693830 1750291 1758480 1817096 1919674 1923984 2032596 2044233 2071110 2258440 2271370 2404980 2485332 2540745 2637720 2710128 2725644 2761480 2879511 2923920 3106665 3206640 3313776 3387660 3407055 3500582 3634192 3839348 4065192 4088466 4142220 4516880 4542740 4799185 4809960 4970664 5081490 5250873 5275440 5451288 5522960 5759022 6213330 6775320 6814110 7001164 7678696 8130384 8176932 8284440 8638533 8751455 9085480 9598370 9619920 9941328 10162980 10221165 10501746 10902576 11518044 12426660 13550640 13628220 14002328 14397555 15357392 15752619 16353864 16568880 17277066 17502910 18170960 19196740 20325960 20442330 21003492 23036088 24853320 26254365 27256440 28004656 28795110 29754947 31505238 32707728 34554132 35005820 38393480 40651920 40884660 42006984 43192665 46072176 49706640 52508730 54512880 57590220 59509894 63010476 69108264 70011640 76786960 78763095 81769320 84013968 86385330 89264841 105017460 115180440 119019788 126020952 138216528 140023280 148774735 157526190 163538640 172770660 178529682 210034920 230360880 238039576 252041904 267794523 297549470 315052380 345541320 357059364 420069840 446324205 476079152 535589046 595098940 630104760 691082640 714118728 892648410 1071178092 1190197880 1260209520 1338972615 1428237456 1785296820 2142356184 2380395760 2677945230 3570593640 4284712368 5355890460 7141187280 10711780920 21423561840
- Sum of all divisors σ(n): 79421202432
- Sum of proper divisors (its aliquot sum) s(n): 57997640592
- 21423561840 is an abundant number, because the sum of its proper divisors (57997640592) is greater than itself. Its abundance is 36574078752
Bases of 21423561840
- Binary: 100111111001111000110011100011100002
- Hexadecimal: 0x4FCF19C70
- Base-36: 9UB1A40
Squares and roots of 21423561840
- 21423561840 squared (214235618402) is 458969001912304185600
- 21423561840 cubed (214235618403) is 9832750795111326977092437504000
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The
square root of 21423561840 is 146367.8989396241 -
The
cube root of 21423561840 is 2777.3496573599
Scales and comparisons
How big is 21423561840?- 21,423,561,840 seconds is equal to 681 years, 10 weeks, 3 days, 21 hours, 24 minutes.
-
To count from 1 to 21,423,561,840 would take you about one thousand, three hundred sixty-two 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 21423561840 cubic inches would be around 231.4 feet tall.
Recreational maths with 21423561840
- 21423561840 backwards is 04816532412
- 21423561840 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21423561840's digits is 36
- More coming soon!
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