381920
381,920 is an even composite number composed of five prime numbers multiplied together.
381920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 381920:
25 × 5 × 7 × 11 × 31
(2 × 2 × 2 × 2 × 2 × 5 × 7 × 11 × 31)See below for interesting mathematical facts about the number 381920 from the Numbermatics database.
Names of 381920
- Cardinal: 381920 can be written as Three hundred eighty-one thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 3.8192 × 105
Factors of 381920
Divisors of 381920
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 4 5 7 8 10 11 14 16 20 22 28 31 32 35 40 44 55 56 62 70 77 80 88 110 112 124 140 154 155 160 176 217 220 224 248 280 308 310 341 352 385 434 440 496 560 616 620 682 770 868 880 992 1085 1120 1232 1240 1364 1540 1705 1736 1760 2170 2387 2464 2480 2728 3080 3410 3472 4340 4774 4960 5456 6160 6820 6944 8680 9548 10912 11935 12320 13640 17360 19096 23870 27280 34720 38192 47740 54560 76384 95480 190960 381920
- Sum of all divisors σ(n): 1161216
- Sum of proper divisors (its aliquot sum) s(n): 779296
- 381920 is an abundant number, because the sum of its proper divisors (779296) is greater than itself. Its abundance is 397376
Bases of 381920
- Binary: 10111010011111000002
- Hexadecimal: 0x5D3E0
- Base-36: 86OW
Squares and roots of 381920
- 381920 squared (3819202) is 145862886400
- 381920 cubed (3819203) is 55707953573888000
-
The
square root of 381920 is 617.9967637455 -
The
cube root of 381920 is 72.5533495557
Scales and comparisons
How big is 381920?- 381,920 seconds is equal to 4 days, 10 hours, 5 minutes, 20 seconds.
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To count from 1 to 381,920 would take you about four days.
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 381920 cubic inches would be around 6 feet tall.
Recreational maths with 381920
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The information we have on file for 381920 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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