21007428421918016
21,007,428,421,918,016 is an even composite number composed of three prime numbers multiplied together.
21007428421918016 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of one hundred fifty-four divisors.
Prime factorization of 21007428421918016:
26 × 1310 × 2381
(2 × 2 × 2 × 2 × 2 × 2 × 13 × 13 × 13 × 13 × 13 × 13 × 13 × 13 × 13 × 13 × 2381)See below for interesting mathematical facts about the number 21007428421918016 from the Numbermatics database.
Names of 21007428421918016
- Cardinal: 21007428421918016 can be written as Twenty-one quadrillion, seven trillion, four hundred twenty-eight billion, four hundred twenty-one million, nine hundred eighteen thousand and sixteen.
Scientific notation
- Scientific notation: 2.1007428421918016 × 1016
Factors of 21007428421918016
Divisors of 21007428421918016
- Number of divisors d(n): 154
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Complete list of divisors:
1 2 4 8 13 16 26 32 52 64 104 169 208 338 416 676 832 1352 2197 2381 2704 4394 4762 5408 8788 9524 10816 17576 19048 28561 30953 35152 38096 57122 61906 70304 76192 114244 123812 140608 152384 228488 247624 371293 402389 456976 495248 742586 804778 913952 990496 1485172 1609556 1827904 1980992 2970344 3219112 4826809 5231057 5940688 6438224 9653618 10462114 11881376 12876448 19307236 20924228 23762752 25752896 38614472 41848456 62748517 68003741 77228944 83696912 125497034 136007482 154457888 167393824 250994068 272014964 308915776 334787648 501988136 544029928 815730721 884048633 1003976272 1088059856 1631461442 1768097266 2007952544 2176119712 3262922884 3536194532 4015905088 4352239424 6525845768 7072389064 10604499373 11492632229 13051691536 14144778128 21208998746 22985264458 26103383072 28289556256 42417997492 45970528916 52206766144 56579112512 84835994984 91941057832 137858491849 149404218977 169671989968 183882115664 275716983698 298808437954 339343979936 367764231328 551433967396 597616875908 678687959872 735528462656 1102867934792 1195233751816 1942254846701 2205735869584 2390467503632 3884509693402 4411471739168 4780935007264 7769019386804 8822943478336 9561870014528 15538038773608 25249313007113 31076077547216 50498626014226 62152155094432 100997252028452 124304310188864 201994504056904 328241069092469 403989008113808 656482138184938 807978016227616 1312964276369876 1615956032455232 2625928552739752 5251857105479504 10503714210959008 21007428421918016
- Sum of all divisors σ(n): 45179467453450542
- Sum of proper divisors (its aliquot sum) s(n): 24172039031532526
- 21007428421918016 is an abundant number, because the sum of its proper divisors (24172039031532526) is greater than itself. Its abundance is 3164610609614510
Bases of 21007428421918016
- Binary: 10010101010001000100101000101001011101110011101010000002
- Hexadecimal: 0x4AA22514BB9D40
- Base-36: 5QUIFDYOJ7K
Squares and roots of 21007428421918016
- 21007428421918016 squared (210074284219180162) is 441312048902008864060508225376256
- 21007428421918016 cubed (210074284219180163) is 9270831279038934376743472526822805231998785028096
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The
square root of 21007428421918016 is 144939395.6863282083 -
The
cube root of 21007428421918016 is 275924.9446805977
Scales and comparisons
How big is 21007428421918016?- 21,007,428,421,918,016 seconds is equal to 667,971,243 years, 29 weeks, 6 days, 2 hours, 6 minutes, 56 seconds.
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To count from 1 to 21,007,428,421,918,016 would take you about two billion, three million, nine hundred thirteen thousand, seven hundred thirty 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 21007428421918016 cubic inches would be around 22993.7 feet tall.
Recreational maths with 21007428421918016
- 21007428421918016 backwards is 61081912482470012
- The number of decimal digits it has is: 17
- The sum of 21007428421918016's digits is 56
- More coming soon!
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