21397456368
21,397,456,368 is an even composite number composed of five prime numbers multiplied together.
21397456368 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of four hundred twenty divisors.
Prime factorization of 21397456368:
24 × 36 × 17 × 31 × 592
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 17 × 31 × 59 × 59)See below for interesting mathematical facts about the number 21397456368 from the Numbermatics database.
Names of 21397456368
- Cardinal: 21397456368 can be written as Twenty-one billion, three hundred ninety-seven million, four hundred fifty-six thousand, three hundred sixty-eight.
Scientific notation
- Scientific notation: 2.1397456368 × 1010
Factors of 21397456368
Divisors of 21397456368
- Number of divisors d(n): 420
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 17 18 24 27 31 34 36 48 51 54 59 62 68 72 81 93 102 108 118 124 136 144 153 162 177 186 204 216 236 243 248 272 279 306 324 354 372 408 432 459 472 486 496 527 531 558 612 648 708 729 744 816 837 918 944 972 1003 1054 1062 1116 1224 1296 1377 1416 1458 1488 1581 1593 1674 1829 1836 1944 2006 2108 2124 2232 2448 2511 2754 2832 2916 3009 3162 3186 3348 3481 3658 3672 3888 4012 4131 4216 4248 4464 4743 4779 5022 5487 5508 5832 6018 6324 6372 6696 6962 7316 7344 7533 8024 8262 8432 8496 9027 9486 9558 10044 10443 10974 11016 11664 12036 12393 12648 12744 13392 13924 14229 14337 14632 15066 16048 16461 16524 18054 18972 19116 20088 20886 21948 22032 22599 24072 24786 25296 25488 27081 27848 28458 28674 29264 30132 31093 31329 32922 33048 36108 37944 38232 40176 41772 42687 43011 43896 45198 48144 49383 49572 54162 55696 56916 57348 59177 60264 62186 62658 65844 66096 72216 75888 76464 81243 83544 85374 86022 87792 90396 93279 93987 98766 99144 107911 108324 113832 114696 118354 120528 124372 125316 128061 131688 144432 148149 162486 167088 170748 172044 177531 180792 186558 187974 197532 198288 215822 216648 227664 229392 236708 243729 248744 250632 256122 263376 279837 281961 296298 323733 324972 341496 344088 355062 361584 373116 375948 384183 395064 431644 433296 444447 473416 487458 497488 501264 512244 532593 559674 563922 592596 647466 649944 682992 688176 710124 731187 746232 751896 768366 790128 839511 845883 863288 888894 946832 971199 974916 1024488 1065186 1119348 1127844 1185192 1294932 1299888 1333341 1420248 1462374 1492464 1503792 1536732 1597779 1679022 1691766 1726576 1777788 1834487 1942398 1949832 2048976 2130372 2238696 2255688 2370384 2518533 2537649 2589864 2666682 2840496 2913597 2924748 3073464 3195558 3358044 3383532 3555576 3668974 3884796 3899664 4260744 4477392 4511376 4793337 5037066 5075298 5179728 5333364 5503461 5827194 5849496 6146928 6391116 6716088 6767064 7111152 7337948 7555599 7769592 8521488 8740791 9586674 10074132 10150596 10666728 11006922 11654388 11698992 12782232 13432176 13534128 14380011 14675896 15111198 15539184 16510383 17481582 19173348 20148264 20301192 21333456 22013844 22666797 23308776 25564464 26222373 28760022 29351792 30222396 33020766 34963164 38346696 40296528 40602384 43140033 44027688 45333594 46617552 49531149 52444746 57520044 60444792 66041532 69926328 76693392 78667119 86280066 88055376 90667188 99062298 104889492 115040088 120889584 132083064 139852656 148593447 157334238 172560132 181334376 198124596 209778984 230080176 264166128 297186894 314668476 345120264 362668752 396249192 419557968 445780341 594373788 629336952 690240528 792498384 891560682 1188747576 1258673904 1337341023 1783121364 2377495152 2674682046 3566242728 5349364092 7132485456 10698728184 21397456368
- Sum of all divisors σ(n): 69108308928
- Sum of proper divisors (its aliquot sum) s(n): 47710852560
- 21397456368 is an abundant number, because the sum of its proper divisors (47710852560) is greater than itself. Its abundance is 26313396192
Bases of 21397456368
- Binary: 100111110110110001101000101111100002
- Hexadecimal: 0x4FB6345F0
- Base-36: 9TVHR00
Squares and roots of 21397456368
- 21397456368 squared (213974563682) is 457851139020463751424
- 21397456368 cubed (213974563683) is 9796849770229475380220637868032
-
The
square root of 21397456368 is 146278.6941697253 -
The
cube root of 21397456368 is 2776.2210947381
Scales and comparisons
How big is 21397456368?- 21,397,456,368 seconds is equal to 680 years, 19 weeks, 2 days, 17 hours, 52 minutes, 48 seconds.
-
To count from 1 to 21,397,456,368 would take you about one thousand, three hundred sixty 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 21397456368 cubic inches would be around 231.4 feet tall.
Recreational maths with 21397456368
- 21397456368 backwards is 86365479312
- 21397456368 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21397456368's digits is 54
- More coming soon!
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The information we have on file for 21397456368 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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