138639264
138,639,264 is an even composite number composed of four prime numbers multiplied together.
138639264 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 138639264:
25 × 3 × 732 × 271
(2 × 2 × 2 × 2 × 2 × 3 × 73 × 73 × 271)See below for interesting mathematical facts about the number 138639264 from the Numbermatics database.
Names of 138639264
- Cardinal: 138639264 can be written as One hundred thirty-eight million, six hundred thirty-nine thousand, two hundred sixty-four.
Scientific notation
- Scientific notation: 1.38639264 × 108
Factors of 138639264
Divisors of 138639264
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 3 4 6 8 12 16 24 32 48 73 96 146 219 271 292 438 542 584 813 876 1084 1168 1626 1752 2168 2336 3252 3504 4336 5329 6504 7008 8672 10658 13008 15987 19783 21316 26016 31974 39566 42632 59349 63948 79132 85264 118698 127896 158264 170528 237396 255792 316528 474792 511584 633056 949584 1444159 1899168 2888318 4332477 5776636 8664954 11553272 17329908 23106544 34659816 46213088 69319632 138639264
- Sum of all divisors σ(n): 370343232
- Sum of proper divisors (its aliquot sum) s(n): 231703968
- 138639264 is an abundant number, because the sum of its proper divisors (231703968) is greater than itself. Its abundance is 93064704
Bases of 138639264
- Binary: 10000100001101110111101000002
- Hexadecimal: 0x84377A0
- Base-36: 2AJIQO
Squares and roots of 138639264
- 138639264 squared (1386392642) is 19220845522461696
- 138639264 cubed (1386392643) is 2664763876691785001631744
-
The
square root of 138639264 is 11774.5175697349 -
The
cube root of 138639264 is 517.5616412373
Scales and comparisons
How big is 138639264?- 138,639,264 seconds is equal to 4 years, 21 weeks, 1 day, 14 hours, 54 minutes, 24 seconds.
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To count from 1 to 138,639,264 would take you about six 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 138639264 cubic inches would be around 43.1 feet tall.
Recreational maths with 138639264
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