387990

387,990 is an even composite number composed of four prime numbers multiplied together.

What does the number 387990 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 40 divisors.

387990 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty divisors.

Prime factorization of 387990:

2 × 3⁴ × 5 × 479

(2 × 3 × 3 × 3 × 3 × 5 × 479)

See below for interesting mathematical facts about the number 387990 from the Numbermatics database.

Names of 387990

Cardinal: 387990 can be written as Three hundred eighty-seven thousand, nine hundred ninety.

Scientific notation

Scientific notation: 3.8799 × 10⁵

Factors of 387990

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 489

Divisors of 387990

Number of divisors d(n): 40
Complete list of divisors:
1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 479 810 958 1437 2395 2874 4311 4790 7185 8622 12933 14370 21555 25866 38799 43110 64665 77598 129330 193995 387990
Sum of all divisors σ(n): 1045440
Sum of proper divisors (its aliquot sum) s(n): 657450
387990 is an abundant number, because the sum of its proper divisors (657450) is greater than itself. Its abundance is 269460

Bases of 387990

Binary: 1011110101110010110₂
Hexadecimal: 0x5EB96
Base-36: 8BDI

Squares and roots of 387990

387990 squared (387990²) is 150536240100
387990 cubed (387990³) is 58406555796399000
The square root of 387990 is 622.8884330279
The cube root of 387990 is 72.9357036915

Scales and comparisons

How big is 387990?

387,990 seconds is equal to 4 days, 11 hours, 46 minutes, 30 seconds.
To count from 1 to 387,990 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 387990 cubic inches would be around 6.1 feet tall.

Recreational maths with 387990

387990 backwards is 099783
The number of decimal digits it has is: 6
The sum of 387990's digits is 36
More coming soon!

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The information we have on file for 387990 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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