21012958736
21,012,958,736 is an even composite number composed of six prime numbers multiplied together.
21012958736 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21012958736:
24 × 7 × 112 × 29 × 127 × 421
(2 × 2 × 2 × 2 × 7 × 11 × 11 × 29 × 127 × 421)See below for interesting mathematical facts about the number 21012958736 from the Numbermatics database.
Names of 21012958736
- Cardinal: 21012958736 can be written as Twenty-one billion, twelve million, nine hundred fifty-eight thousand, seven hundred thirty-six.
Scientific notation
- Scientific notation: 2.1012958736 × 1010
Factors of 21012958736
Divisors of 21012958736
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 4 7 8 11 14 16 22 28 29 44 56 58 77 88 112 116 121 127 154 176 203 232 242 254 308 319 406 421 464 484 508 616 638 812 842 847 889 968 1016 1232 1276 1397 1624 1684 1694 1778 1936 2032 2233 2552 2794 2947 3248 3368 3388 3509 3556 3683 4466 4631 5104 5588 5894 6736 6776 7018 7112 7366 8932 9262 9779 11176 11788 12209 13552 14036 14224 14732 15367 17864 18524 19558 22352 23576 24418 24563 25781 28072 29464 30734 32417 35728 37048 39116 40513 47152 48836 49126 50941 51562 53467 56144 58928 61468 64834 74096 78232 81026 85463 97672 98252 101882 103124 106934 107569 122936 129668 134299 156464 162052 170926 195344 196504 203764 206248 213868 215138 245872 259336 268598 283591 324104 341852 356587 374269 393008 407528 412496 427736 430276 445643 518672 537196 567182 588137 648208 683704 713174 748538 815056 855472 860552 891286 940093 1074392 1134364 1176274 1367408 1426348 1477289 1497076 1550543 1721104 1782572 1880186 2148784 2268728 2352548 2852696 2954578 2994152 3101086 3119501 3565144 3760372 4116959 4537456 4705096 5705392 5909156 5988304 6202172 6239002 6469507 7130288 7520744 8233918 9410192 10341023 10853801 11818312 12404344 12478004 12939014 15041488 16467836 17055973 20682046 21707602 23636624 24808688 24956008 25878028 32935672 34111946 41364092 43415204 45286549 49912016 51756056 65871344 68223892 82728184 86830408 90573098 103512112 119391811 136447784 165456368 173660816 181146196 187615703 238783622 272895568 362292392 375231406 477567244 724584784 750462812 955134488 1313309921 1500925624 1910268976 2626619842 3001851248 5253239684 10506479368 21012958736
- Sum of all divisors σ(n): 53449912320
- Sum of proper divisors (its aliquot sum) s(n): 32436953584
- 21012958736 is an abundant number, because the sum of its proper divisors (32436953584) is greater than itself. Its abundance is 11423994848
Bases of 21012958736
- Binary: 100111001000111100001001110000100002
- Hexadecimal: 0x4E4784E10
- Base-36: 9NIKMQ8
Squares and roots of 21012958736
- 21012958736 squared (210129587362) is 441544434840838717696
- 21012958736 cubed (210129587363) is 9278154989420984702577200992256
-
The
square root of 21012958736 is 144958.4724533201 -
The
cube root of 21012958736 is 2759.4915544533
Scales and comparisons
How big is 21012958736?- 21,012,958,736 seconds is equal to 668 years, 7 weeks, 4 days, 12 hours, 58 minutes, 56 seconds.
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To count from 1 to 21,012,958,736 would take you about one thousand, three hundred thirty-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 21012958736 cubic inches would be around 230 feet tall.
Recreational maths with 21012958736
- 21012958736 backwards is 63785921012
- 21012958736 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21012958736's digits is 44
- More coming soon!
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