381538668
381,538,668 is an even composite number composed of six prime numbers multiplied together.
381538668 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 381538668:
22 × 3 × 7 × 47 × 241 × 401
(2 × 2 × 3 × 7 × 47 × 241 × 401)See below for interesting mathematical facts about the number 381538668 from the Numbermatics database.
Names of 381538668
- Cardinal: 381538668 can be written as Three hundred eighty-one million, five hundred thirty-eight thousand, six hundred sixty-eight.
Scientific notation
- Scientific notation: 3.81538668 × 108
Factors of 381538668
Divisors of 381538668
- Number of divisors d(n): 96
-
Complete list of divisors:
1 2 3 4 6 7 12 14 21 28 42 47 84 94 141 188 241 282 329 401 482 564 658 723 802 964 987 1203 1316 1446 1604 1687 1974 2406 2807 2892 3374 3948 4812 5061 5614 6748 8421 10122 11228 11327 16842 18847 20244 22654 33684 33981 37694 45308 56541 67962 75388 79289 96641 113082 131929 135924 158578 193282 226164 237867 263858 289923 317156 386564 395787 475734 527716 579846 676487 791574 951468 1159692 1352974 1583148 2029461 2705948 4058922 4542127 8117844 9084254 13626381 18168508 27252762 31794889 54505524 63589778 95384667 127179556 190769334 381538668
- Sum of all divisors σ(n): 1045997568
- Sum of proper divisors (its aliquot sum) s(n): 664458900
- 381538668 is an abundant number, because the sum of its proper divisors (664458900) is greater than itself. Its abundance is 282920232
Bases of 381538668
- Binary: 101101011110111010001011011002
- Hexadecimal: 0x16BDD16C
- Base-36: 6B5P4C
Squares and roots of 381538668
- 381538668 squared (3815386682) is 145571755179214224
- 381538668 cubed (3815386683) is 55541253569499496311613632
-
The
square root of 381538668 is 19533.0148210665 -
The
cube root of 381538668 is 725.2919429875
Scales and comparisons
How big is 381538668?- 381,538,668 seconds is equal to 12 years, 6 weeks, 5 days, 22 hours, 57 minutes, 48 seconds.
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To count from 1 to 381,538,668 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 381538668 cubic inches would be around 60.4 feet tall.
Recreational maths with 381538668
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