638409

638,409 is an odd composite number composed of three prime numbers multiplied together.

What does the number 638409 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

638409 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 638409:

3 × 241 × 883

See below for interesting mathematical facts about the number 638409 from the Numbermatics database.

Names of 638409

Cardinal: 638409 can be written as Six hundred thirty-eight thousand, four hundred nine.

Scientific notation

Scientific notation: 6.38409 × 10⁵

Factors of 638409

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 3
Sum of prime factors: 1127

Divisors of 638409

Number of divisors d(n): 8
Complete list of divisors:
1 3 241 723 883 2649 212803 638409
Sum of all divisors σ(n): 855712
Sum of proper divisors (its aliquot sum) s(n): 217303
638409 is a deficient number, because the sum of its proper divisors (217303) is less than itself. Its deficiency is 421106

Bases of 638409

Binary: 10011011110111001001₂
Hexadecimal: 0x9BDC9
Base-36: DOLL

Squares and roots of 638409

638409 squared (638409²) is 407566051281
638409 cubed (638409³) is 260193835232251929
The square root of 638409 is 799.0050062421
The cube root of 638409 is 86.1059178123

Scales and comparisons

How big is 638409?

638,409 seconds is equal to 1 week, 9 hours, 20 minutes, 9 seconds.
To count from 1 to 638,409 would take you about nine hours!

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 638409 cubic inches would be around 7.2 feet tall.

Recreational maths with 638409

638409 backwards is 904836
The number of decimal digits it has is: 6
The sum of 638409's digits is 30
More coming soon!

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The information we have on file for 638409 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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