21004708725
21,004,708,725 is an odd composite number composed of six prime numbers multiplied together.
21004708725 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21004708725:
33 × 52 × 72 × 11 × 13 × 4441
(3 × 3 × 3 × 5 × 5 × 7 × 7 × 11 × 13 × 4441)See below for interesting mathematical facts about the number 21004708725 from the Numbermatics database.
Names of 21004708725
- Cardinal: 21004708725 can be written as Twenty-one billion, four million, seven hundred eight thousand, seven hundred twenty-five.
Scientific notation
- Scientific notation: 2.1004708725 × 1010
Factors of 21004708725
Divisors of 21004708725
- Number of divisors d(n): 288
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Complete list of divisors:
1 3 5 7 9 11 13 15 21 25 27 33 35 39 45 49 55 63 65 75 77 91 99 105 117 135 143 147 165 175 189 195 225 231 245 273 275 297 315 325 351 385 429 441 455 495 525 539 585 637 675 693 715 735 819 825 945 975 1001 1155 1225 1287 1323 1365 1485 1575 1617 1755 1911 1925 2079 2145 2205 2275 2457 2475 2695 2925 3003 3185 3465 3575 3675 3861 4095 4441 4725 4851 5005 5733 5775 6435 6615 6825 7007 7425 8085 8775 9009 9555 10395 10725 11025 12285 13323 13475 14553 15015 15925 17199 17325 19305 20475 21021 22205 24255 25025 27027 28665 31087 32175 33075 35035 39969 40425 45045 47775 48851 51975 57733 61425 63063 66615 72765 75075 85995 93261 96525 105105 111025 119907 121275 135135 143325 146553 155435 173199 175175 189189 199845 217609 225225 244255 279783 288665 315315 333075 341957 363825 404131 429975 439659 466305 519597 525525 599535 635063 652827 675675 732765 777175 839349 865995 945945 999225 1025871 1088045 1212393 1221275 1318977 1398915 1443325 1558791 1576575 1709785 1905189 1958481 2020655 2198295 2331525 2393699 2597985 2828917 2997675 3077613 3175315 3264135 3637179 3663825 4196745 4329975 4445441 4729725 5129355 5440225 5715567 5875443 6061965 6594885 6994575 7181097 7793955 8486751 8548925 9232839 9525945 9792405 10103275 10911537 10991475 11968495 12989925 13336323 14144585 15388065 15876575 16320675 17146701 18185895 20983725 21543291 22227205 25460253 25646775 28577835 29377215 30309825 31118087 32974425 35905485 38969775 40008969 42433755 46164195 47629725 48962025 54557685 59842475 64629873 66681615 70722925 76380759 76940325 85733505 90929475 93354261 107716455 111136025 120026907 127301265 142889175 146886075 155590435 179527425 200044845 212168775 230820975 272788425 280062783 323149365 333408075 381903795 428667525 466771305 538582275 600134535 636506325 777952175 840188349 1000224225 1400313915 1615746825 1909518975 2333856525 3000672675 4200941745 7001569575 21004708725
- Sum of all divisors σ(n): 52745374080
- Sum of proper divisors (its aliquot sum) s(n): 31740665355
- 21004708725 is an abundant number, because the sum of its proper divisors (31740665355) is greater than itself. Its abundance is 10735956630
Bases of 21004708725
- Binary: 100111000111111101001101011011101012
- Hexadecimal: 0x4E3FA6B75
- Base-36: 9NDNSZ9
Squares and roots of 21004708725
- 21004708725 squared (210047087252) is 441197788622091125625
- 21004708725 cubed (210047087253) is 9267231040121143194160508578125
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The
square root of 21004708725 is 144930.0131960251 -
The
cube root of 21004708725 is 2759.1303675621
Scales and comparisons
How big is 21004708725?- 21,004,708,725 seconds is equal to 667 years, 46 weeks, 1 hour, 18 minutes, 45 seconds.
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To count from 1 to 21,004,708,725 would take you about one thousand, three hundred thirty-five 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 21004708725 cubic inches would be around 229.9 feet tall.
Recreational maths with 21004708725
- 21004708725 backwards is 52780740012
- The number of decimal digits it has is: 11
- The sum of 21004708725's digits is 36
- More coming soon!
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