18138306642
18,138,306,642 is an even composite number composed of five prime numbers multiplied together.
18138306642 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 18138306642:
2 × 3 × 19 × 733 × 409
(2 × 3 × 19 × 73 × 73 × 73 × 409)See below for interesting mathematical facts about the number 18138306642 from the Numbermatics database.
Names of 18138306642
- Cardinal: 18138306642 can be written as Eighteen billion, one hundred thirty-eight million, three hundred six thousand, six hundred forty-two.
Scientific notation
- Scientific notation: 1.8138306642 × 1010
Factors of 18138306642
Divisors of 18138306642
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 6 19 38 57 73 114 146 219 409 438 818 1227 1387 2454 2774 4161 5329 7771 8322 10658 15542 15987 23313 29857 31974 46626 59714 89571 101251 179142 202502 303753 389017 567283 607506 778034 1134566 1167051 1701849 2179561 2334102 3403698 4359122 6538683 7391323 13077366 14782646 22173969 41411659 44347938 82823318 124234977 159107953 248469954 318215906 477323859 954647718 3023051107 6046102214 9069153321 18138306642
- Sum of all divisors σ(n): 38810928000
- Sum of proper divisors (its aliquot sum) s(n): 20672621358
- 18138306642 is an abundant number, because the sum of its proper divisors (20672621358) is greater than itself. Its abundance is 2534314716
Bases of 18138306642
- Binary: 100001110010010000010011000010100102
- Hexadecimal: 0x439209852
- Base-36: 8BZ2UZ6
Squares and roots of 18138306642
- 18138306642 squared (181383066422) is 328998167839221316164
- 18138306642 cubed (181383066423) is 5967469652923978787085463161288
-
The
square root of 18138306642 is 134678.5307389415 -
The
cube root of 18138306642 is 2627.4366076233
Scales and comparisons
How big is 18138306642?- 18,138,306,642 seconds is equal to 576 years, 38 weeks, 4 days, 2 hours, 30 minutes, 42 seconds.
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To count from 1 to 18,138,306,642 would take you about one thousand, one hundred fifty-three 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 18138306642 cubic inches would be around 219 feet tall.
Recreational maths with 18138306642
- 18138306642 backwards is 24660383181
- The number of decimal digits it has is: 11
- The sum of 18138306642's digits is 42
- More coming soon!
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The information we have on file for 18138306642 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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