21365531082
21,365,531,082 is an even composite number composed of seven prime numbers multiplied together.
21365531082 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 21365531082:
2 × 33 × 7 × 17 × 23 × 37 × 3907
(2 × 3 × 3 × 3 × 7 × 17 × 23 × 37 × 3907)See below for interesting mathematical facts about the number 21365531082 from the Numbermatics database.
Names of 21365531082
- Cardinal: 21365531082 can be written as Twenty-one billion, three hundred sixty-five million, five hundred thirty-one thousand and eighty-two.
Scientific notation
- Scientific notation: 2.1365531082 × 1010
Factors of 21365531082
Divisors of 21365531082
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 3 6 7 9 14 17 18 21 23 27 34 37 42 46 51 54 63 69 74 102 111 119 126 138 153 161 189 207 222 238 259 306 322 333 357 378 391 414 459 483 518 621 629 666 714 777 782 851 918 966 999 1071 1173 1242 1258 1449 1554 1702 1887 1998 2142 2331 2346 2553 2737 2898 3213 3519 3774 3907 4347 4403 4662 5106 5474 5661 5957 6426 6993 7038 7659 7814 8211 8694 8806 10557 11322 11721 11914 13209 13986 14467 15318 16422 16983 17871 21114 22977 23442 24633 26418 27349 28934 33966 35163 35742 39627 43401 45954 49266 53613 54698 66419 70326 73899 79254 82047 86802 89861 101269 105489 107226 118881 130203 132838 144559 147798 160839 164094 179722 199257 202538 210978 237762 246141 260406 269583 289118 303807 321678 390609 398514 433677 464933 492282 539166 597771 607614 629027 738423 781218 808749 867354 911421 929866 1011913 1195542 1258054 1301031 1394799 1476846 1527637 1617498 1793313 1822842 1887081 2023826 2426247 2457503 2602062 2734263 2789598 3035739 3055274 3324857 3586626 3774162 3903093 4184397 4582911 4852494 4915006 5468526 5661243 6071478 6649714 7372509 7806186 8368794 9107217 9165822 9974571 10693459 11322486 12553191 13748733 14745018 16983729 17202521 18214434 19949142 21386918 22117527 23273999 25106382 27321651 27497466 29923713 32080377 33967458 34405042 41246199 44235054 46547998 51607563 54643302 56522569 59847426 64160754 66352581 69821997 82492398 89771139 96241131 103215126 113045138 132705162 139643994 154822689 169567707 179542278 192482262 209465991 288723393 309645378 339135414 395657983 418931982 464468067 508703121 577446786 628397973 791315966 928936134 1017406242 1186973949 1256795946 1526109363 2373947898 3052218726 3560921847 7121843694 10682765541 21365531082
- Sum of all divisors σ(n): 61587578880
- Sum of proper divisors (its aliquot sum) s(n): 40222047798
- 21365531082 is an abundant number, because the sum of its proper divisors (40222047798) is greater than itself. Its abundance is 18856516716
Bases of 21365531082
- Binary: 100111110010111110000100001110010102
- Hexadecimal: 0x4F97C21CA
- Base-36: 9TCHHAI
Squares and roots of 21365531082
- 21365531082 squared (213655310822) is 456485918415908090724
- 21365531082 cubed (213655310823) is 9753064078410400515618897883368
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The
square root of 21365531082 is 146169.5285687137 -
The
cube root of 21365531082 is 2774.8396880363
Scales and comparisons
How big is 21365531082?- 21,365,531,082 seconds is equal to 679 years, 18 weeks, 4 days, 5 hours, 44 minutes, 42 seconds.
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To count from 1 to 21,365,531,082 would take you about one thousand, three hundred fifty-eight 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 21365531082 cubic inches would be around 231.2 feet tall.
Recreational maths with 21365531082
- 21365531082 backwards is 28013556312
- The number of decimal digits it has is: 11
- The sum of 21365531082's digits is 36
- More coming soon!
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