388931424
388,931,424 is an even composite number composed of five prime numbers multiplied together.
388931424 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 388931424:
25 × 3 × 72 × 89 × 929
(2 × 2 × 2 × 2 × 2 × 3 × 7 × 7 × 89 × 929)See below for interesting mathematical facts about the number 388931424 from the Numbermatics database.
Names of 388931424
- Cardinal: 388931424 can be written as Three hundred eighty-eight million, nine hundred thirty-one thousand, four hundred twenty-four.
Scientific notation
- Scientific notation: 3.88931424 × 108
Factors of 388931424
Divisors of 388931424
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 84 89 96 98 112 147 168 178 196 224 267 294 336 356 392 534 588 623 672 712 784 929 1068 1176 1246 1424 1568 1858 1869 2136 2352 2492 2787 2848 3716 3738 4272 4361 4704 4984 5574 6503 7432 7476 8544 8722 9968 11148 13006 13083 14864 14952 17444 19509 19936 22296 26012 26166 29728 29904 34888 39018 44592 45521 52024 52332 59808 69776 78036 82681 89184 91042 104048 104664 136563 139552 156072 165362 182084 208096 209328 248043 273126 312144 330724 364168 418656 496086 546252 578767 624288 661448 728336 992172 1092504 1157534 1322896 1456672 1736301 1984344 2185008 2315068 2645792 3472602 3968688 4051369 4370016 4630136 6945204 7937376 8102738 9260272 12154107 13890408 16205476 18520544 24308214 27780816 32410952 48616428 55561632 64821904 97232856 129643808 194465712 388931424
- Sum of all divisors σ(n): 1202266800
- Sum of proper divisors (its aliquot sum) s(n): 813335376
- 388931424 is an abundant number, because the sum of its proper divisors (813335376) is greater than itself. Its abundance is 424403952
Bases of 388931424
- Binary: 101110010111010011111011000002
- Hexadecimal: 0x172E9F60
- Base-36: 6FK5EO
Squares and roots of 388931424
- 388931424 squared (3889314242) is 151267652574667776
- 388931424 cubed (3889314243) is 58832743521002804446593024
-
The
square root of 388931424 is 19721.3443760815 -
The
cube root of 388931424 is 729.9464675825
Scales and comparisons
How big is 388931424?- 388,931,424 seconds is equal to 12 years, 19 weeks, 12 hours, 30 minutes, 24 seconds.
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To count from 1 to 388,931,424 would take you about eighteen 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 388931424 cubic inches would be around 60.8 feet tall.
Recreational maths with 388931424
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