381538728
381,538,728 is an even composite number composed of four prime numbers multiplied together.
381538728 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 381538728:
23 × 33 × 892 × 223
(2 × 2 × 2 × 3 × 3 × 3 × 89 × 89 × 223)See below for interesting mathematical facts about the number 381538728 from the Numbermatics database.
Names of 381538728
- Cardinal: 381538728 can be written as Three hundred eighty-one million, five hundred thirty-eight thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 3.81538728 × 108
Factors of 381538728
Divisors of 381538728
- Number of divisors d(n): 96
-
Complete list of divisors:
1 2 3 4 6 8 9 12 18 24 27 36 54 72 89 108 178 216 223 267 356 446 534 669 712 801 892 1068 1338 1602 1784 2007 2136 2403 2676 3204 4014 4806 5352 6021 6408 7921 8028 9612 12042 15842 16056 19224 19847 23763 24084 31684 39694 47526 48168 59541 63368 71289 79388 95052 119082 142578 158776 178623 190104 213867 238164 285156 357246 427734 476328 535869 570312 714492 855468 1071738 1428984 1710936 1766383 2143476 3532766 4286952 5299149 7065532 10598298 14131064 15897447 21196596 31794894 42393192 47692341 63589788 95384682 127179576 190769364 381538728
- Sum of all divisors σ(n): 1076678400
- Sum of proper divisors (its aliquot sum) s(n): 695139672
- 381538728 is an abundant number, because the sum of its proper divisors (695139672) is greater than itself. Its abundance is 313600944
Bases of 381538728
- Binary: 101101011110111010001101010002
- Hexadecimal: 0x16BDD1A8
- Base-36: 6B5P60
Squares and roots of 381538728
- 381538728 squared (3815387282) is 145571800963857984
- 381538728 cubed (3815387283) is 55541279772419549188004352
-
The
square root of 381538728 is 19533.0163569275 -
The
cube root of 381538728 is 725.2919810067
Scales and comparisons
How big is 381538728?- 381,538,728 seconds is equal to 12 years, 6 weeks, 5 days, 22 hours, 58 minutes, 48 seconds.
-
To count from 1 to 381,538,728 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 381538728 cubic inches would be around 60.4 feet tall.
Recreational maths with 381538728
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The information we have on file for 381538728 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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