381640

381,640 is an even composite number composed of five prime numbers multiplied together.

What does the number 381640 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 64 divisors.

381640 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.

Prime factorization of 381640:

2³ × 5 × 7 × 29 × 47

(2 × 2 × 2 × 5 × 7 × 29 × 47)

See below for interesting mathematical facts about the number 381640 from the Numbermatics database.

Names of 381640

Cardinal: 381640 can be written as Three hundred eighty-one thousand, six hundred forty.

Scientific notation

Scientific notation: 3.8164 × 10⁵

Factors of 381640

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 7
Sum of prime factors: 90

Divisors of 381640

Number of divisors d(n): 64
Complete list of divisors:
1 2 4 5 7 8 10 14 20 28 29 35 40 47 56 58 70 94 116 140 145 188 203 232 235 280 290 329 376 406 470 580 658 812 940 1015 1160 1316 1363 1624 1645 1880 2030 2632 2726 3290 4060 5452 6580 6815 8120 9541 10904 13160 13630 19082 27260 38164 47705 54520 76328 95410 190820 381640
Sum of all divisors σ(n): 1036800
Sum of proper divisors (its aliquot sum) s(n): 655160
381640 is an abundant number, because the sum of its proper divisors (655160) is greater than itself. Its abundance is 273520

Bases of 381640

Binary: 1011101001011001000₂
Hexadecimal: 0x5D2C8
Base-36: 86H4

Squares and roots of 381640

381640 squared (381640²) is 145649089600
381640 cubed (381640³) is 55585518554944000
The square root of 381640 is 617.7701838063
The cube root of 381640 is 72.5356146857

Scales and comparisons

How big is 381640?

381,640 seconds is equal to 4 days, 10 hours, 40 seconds.
To count from 1 to 381,640 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 381640 cubic inches would be around 6 feet tall.

Recreational maths with 381640

381640 backwards is 046183
The number of decimal digits it has is: 6
The sum of 381640's digits is 22
More coming soon!

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The information we have on file for 381640 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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