21356818308
21,356,818,308 is an even composite number composed of six prime numbers multiplied together.
21356818308 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21356818308:
22 × 32 × 7 × 53 × 457 × 3499
(2 × 2 × 3 × 3 × 7 × 53 × 457 × 3499)See below for interesting mathematical facts about the number 21356818308 from the Numbermatics database.
Names of 21356818308
- Cardinal: 21356818308 can be written as Twenty-one billion, three hundred fifty-six million, eight hundred eighteen thousand, three hundred eight.
Scientific notation
- Scientific notation: 2.1356818308 × 1010
Factors of 21356818308
Divisors of 21356818308
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 6 7 9 12 14 18 21 28 36 42 53 63 84 106 126 159 212 252 318 371 457 477 636 742 914 954 1113 1371 1484 1828 1908 2226 2742 3199 3339 3499 4113 4452 5484 6398 6678 6998 8226 9597 10497 12796 13356 13996 16452 19194 20994 24221 24493 28791 31491 38388 41988 48442 48986 57582 62982 72663 73479 96884 97972 115164 125964 145326 146958 169547 185447 217989 220437 290652 293916 339094 370894 435978 440874 508641 556341 678188 741788 871956 881748 1017282 1112682 1298129 1525923 1599043 1669023 2034564 2225364 2596258 3051846 3198086 3338046 3894387 4797129 5192516 6103692 6396172 6676092 7788774 9594258 11193301 11683161 14391387 15577548 19188516 22386602 23366322 28782774 33579903 44773204 46732644 57565548 67159806 84749279 100739709 134319612 169498558 201479418 254247837 338997116 402958836 508495674 593244953 762743511 1016991348 1186489906 1525487022 1779734859 2372979812 3050974044 3559469718 5339204577 7118939436 10678409154 21356818308
- Sum of all divisors σ(n): 63017136000
- Sum of proper divisors (its aliquot sum) s(n): 41660317692
- 21356818308 is an abundant number, because the sum of its proper divisors (41660317692) is greater than itself. Its abundance is 20303499384
Bases of 21356818308
- Binary: 100111110001111011100101111100001002
- Hexadecimal: 0x4F8F72F84
- Base-36: 9T7AQH0
Squares and roots of 21356818308
- 21356818308 squared (213568183082) is 456113688240923982864
- 21356818308 cubed (213568183083) is 9741137167553169632066153474112
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The
square root of 21356818308 is 146139.7218691755 -
The
cube root of 21356818308 is 2774.4624474221
Scales and comparisons
How big is 21356818308?- 21,356,818,308 seconds is equal to 679 years, 4 weeks, 1 day, 9 hours, 31 minutes, 48 seconds.
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To count from 1 to 21,356,818,308 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 21356818308 cubic inches would be around 231.2 feet tall.
Recreational maths with 21356818308
- 21356818308 backwards is 80381865312
- The number of decimal digits it has is: 11
- The sum of 21356818308's digits is 45
- More coming soon!
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