13139490
13,139,490 is an even composite number composed of six prime numbers multiplied together.
13139490 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 13139490:
2 × 3 × 5 × 7 × 13 × 4813
See below for interesting mathematical facts about the number 13139490 from the Numbermatics database.
Names of 13139490
- Cardinal: 13139490 can be written as Thirteen million, one hundred thirty-nine thousand, four hundred ninety.
Scientific notation
- Scientific notation: 1.313949 × 107
Factors of 13139490
Divisors of 13139490
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 5 6 7 10 13 14 15 21 26 30 35 39 42 65 70 78 91 105 130 182 195 210 273 390 455 546 910 1365 2730 4813 9626 14439 24065 28878 33691 48130 62569 67382 72195 101073 125138 144390 168455 187707 202146 312845 336910 375414 437983 505365 625690 875966 938535 1010730 1313949 1877070 2189915 2627898 4379830 6569745 13139490
- Sum of all divisors σ(n): 38820096
- Sum of proper divisors (its aliquot sum) s(n): 25680606
- 13139490 is an abundant number, because the sum of its proper divisors (25680606) is greater than itself. Its abundance is 12541116
Bases of 13139490
- Binary: 1100100001111110001000102
- Hexadecimal: 0xC87E22
- Base-36: 7TMHU
Squares and roots of 13139490
- 13139490 squared (131394902) is 172646197460100
- 13139490 cubed (131394903) is 2268482985065009349000
-
The
square root of 13139490 is 3624.8434448951 -
The
cube root of 13139490 is 235.9714726601
Scales and comparisons
How big is 13139490?- 13,139,490 seconds is equal to 21 weeks, 5 days, 1 hour, 51 minutes, 30 seconds.
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To count from 1 to 13,139,490 would take you about thirty-two 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 13139490 cubic inches would be around 19.7 feet tall.
Recreational maths with 13139490
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