381345690
381,345,690 is an even composite number composed of six prime numbers multiplied together.
381345690 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 381345690:
2 × 3 × 5 × 11 × 199 × 5807
See below for interesting mathematical facts about the number 381345690 from the Numbermatics database.
Names of 381345690
- Cardinal: 381345690 can be written as Three hundred eighty-one million, three hundred forty-five thousand, six hundred ninety.
Scientific notation
- Scientific notation: 3.8134569 × 108
Factors of 381345690
Divisors of 381345690
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 199 330 398 597 995 1194 1990 2189 2985 4378 5807 5970 6567 10945 11614 13134 17421 21890 29035 32835 34842 58070 63877 65670 87105 127754 174210 191631 319385 383262 638770 958155 1155593 1916310 2311186 3466779 5777965 6933558 11555930 12711523 17333895 25423046 34667790 38134569 63557615 76269138 127115230 190672845 381345690
- Sum of all divisors σ(n): 1003622400
- Sum of proper divisors (its aliquot sum) s(n): 622276710
- 381345690 is an abundant number, because the sum of its proper divisors (622276710) is greater than itself. Its abundance is 240931020
Bases of 381345690
- Binary: 101101011101011011111100110102
- Hexadecimal: 0x16BADF9A
- Base-36: 6B1K7U
Squares and roots of 381345690
- 381345690 squared (3813456902) is 145424535281576100
- 381345690 cubed (3813456903) is 55457019749881982142009000
-
The
square root of 381345690 is 19528.0744058395 -
The
cube root of 381345690 is 725.1696408421
Scales and comparisons
How big is 381345690?- 381,345,690 seconds is equal to 12 years, 6 weeks, 3 days, 17 hours, 21 minutes, 30 seconds.
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To count from 1 to 381,345,690 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 381345690 cubic inches would be around 60.4 feet tall.
Recreational maths with 381345690
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