18489930
18,489,930 is an even composite number composed of six prime numbers multiplied together.
18489930 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 18489930:
2 × 3 × 5 × 23 × 127 × 211
See below for interesting mathematical facts about the number 18489930 from the Numbermatics database.
Names of 18489930
- Cardinal: 18489930 can be written as Eighteen million, four hundred eighty-nine thousand, nine hundred thirty.
Scientific notation
- Scientific notation: 1.848993 × 107
Factors of 18489930
Divisors of 18489930
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 5 6 10 15 23 30 46 69 115 127 138 211 230 254 345 381 422 633 635 690 762 1055 1266 1270 1905 2110 2921 3165 3810 4853 5842 6330 8763 9706 14559 14605 17526 24265 26797 29118 29210 43815 48530 53594 72795 80391 87630 133985 145590 160782 267970 401955 616331 803910 1232662 1848993 3081655 3697986 6163310 9244965 18489930
- Sum of all divisors σ(n): 46891008
- Sum of proper divisors (its aliquot sum) s(n): 28401078
- 18489930 is an abundant number, because the sum of its proper divisors (28401078) is greater than itself. Its abundance is 9911148
Bases of 18489930
- Binary: 10001101000100010010010102
- Hexadecimal: 0x11A224A
- Base-36: B0AX6
Squares and roots of 18489930
- 18489930 squared (184899302) is 341877511404900
- 18489930 cubed (184899303) is 6321291254450802657000
-
The
square root of 18489930 is 4299.9918604575 -
The
cube root of 18489930 is 264.4306275425
Scales and comparisons
How big is 18489930?- 18,489,930 seconds is equal to 30 weeks, 4 days, 5 minutes, 30 seconds.
-
To count from 1 to 18,489,930 would take you about forty-five weeks!
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 18489930 cubic inches would be around 22 feet tall.
Recreational maths with 18489930
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The information we have on file for 18489930 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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