21531443328
21,531,443,328 is an even composite number composed of four prime numbers multiplied together.
21531443328 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21531443328:
27 × 34 × 312 × 2161
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 31 × 31 × 2161)See below for interesting mathematical facts about the number 21531443328 from the Numbermatics database.
Names of 21531443328
- Cardinal: 21531443328 can be written as Twenty-one billion, five hundred thirty-one million, four hundred forty-three thousand, three hundred twenty-eight.
Scientific notation
- Scientific notation: 2.1531443328 × 1010
Factors of 21531443328
Divisors of 21531443328
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 31 32 36 48 54 62 64 72 81 93 96 108 124 128 144 162 186 192 216 248 279 288 324 372 384 432 496 558 576 648 744 837 864 961 992 1116 1152 1296 1488 1674 1728 1922 1984 2161 2232 2511 2592 2883 2976 3348 3456 3844 3968 4322 4464 5022 5184 5766 5952 6483 6696 7688 8644 8649 8928 10044 10368 11532 11904 12966 13392 15376 17288 17298 17856 19449 20088 23064 25932 25947 26784 30752 34576 34596 35712 38898 40176 46128 51864 51894 53568 58347 61504 66991 69152 69192 77796 77841 80352 92256 103728 103788 107136 116694 123008 133982 138304 138384 155592 155682 160704 175041 184512 200973 207456 207576 233388 267964 276608 276768 311184 311364 321408 350082 369024 401946 414912 415152 466776 535928 553536 602919 622368 622728 700164 803892 829824 830304 933552 1071856 1107072 1205838 1244736 1245456 1400328 1607784 1660608 1808757 1867104 2076721 2143712 2411676 2489472 2490912 2800656 3215568 3321216 3617514 3734208 4153442 4287424 4823352 4981824 5426271 5601312 6230163 6431136 7235028 7468416 8306884 8574848 9646704 9963648 10852542 11202624 12460326 12862272 14470056 16613768 18690489 19293408 21705084 22405248 24920652 25724544 28940112 33227536 37380978 38586816 43410168 49841304 56071467 57880224 66455072 74761956 77173632 86820336 99682608 112142934 115760448 132910144 149523912 168214401 173640672 199365216 224285868 231520896 265820288 299047824 336428802 347281344 398730432 448571736 598095648 672857604 694562688 797460864 897143472 1196191296 1345715208 1794286944 2392382592 2691430416 3588573888 5382860832 7177147776 10765721664 21531443328
- Sum of all divisors σ(n): 66241550430
- Sum of proper divisors (its aliquot sum) s(n): 44710107102
- 21531443328 is an abundant number, because the sum of its proper divisors (44710107102) is greater than itself. Its abundance is 23178663774
Bases of 21531443328
- Binary: 101000000110101111111000000100000002
- Hexadecimal: 0x5035FC080
- Base-36: 9W39K00
Squares and roots of 21531443328
- 21531443328 squared (215314433282) is 463603051786875715584
- 21531443328 cubed (215314433283) is 9982042836236963604276342423552
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The
square root of 21531443328 is 146735.9646712421 -
The
cube root of 21531443328 is 2782.0037711139
Scales and comparisons
How big is 21531443328?- 21,531,443,328 seconds is equal to 684 years, 32 weeks, 6 days, 12 hours, 28 minutes, 48 seconds.
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To count from 1 to 21,531,443,328 would take you about one thousand, three hundred sixty-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 21531443328 cubic inches would be around 231.8 feet tall.
Recreational maths with 21531443328
- 21531443328 backwards is 82334413512
- 21531443328 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21531443328's digits is 36
- More coming soon!
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