640342

640,342 is an even composite number composed of three prime numbers multiplied together.

What does the number 640342 look like?

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

640342 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 640342:

2 × 353 × 907

See below for interesting mathematical facts about the number 640342 from the Numbermatics database.

Names of 640342

Cardinal: 640342 can be written as Six hundred forty thousand, three hundred forty-two.

Scientific notation

Scientific notation: 6.40342 × 10⁵

Factors of 640342

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 3
Sum of prime factors: 1262

Divisors of 640342

Number of divisors d(n): 8
Complete list of divisors:
1 2 353 706 907 1814 320171 640342
Sum of all divisors σ(n): 964296
Sum of proper divisors (its aliquot sum) s(n): 323954
640342 is a deficient number, because the sum of its proper divisors (323954) is less than itself. Its deficiency is 316388

Bases of 640342

Binary: 10011100010101010110₂
Hexadecimal: 0x9C556
Base-36: DQ3A

Squares and roots of 640342

640342 squared (640342²) is 410037876964
640342 cubed (640342³) is 262564474210881688
The square root of 640342 is 800.2137214519
The cube root of 640342 is 86.1927352149

Scales and comparisons

How big is 640342?

640,342 seconds is equal to 1 week, 9 hours, 52 minutes, 22 seconds.
To count from 1 to 640,342 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 640342 cubic inches would be around 7.2 feet tall.

Recreational maths with 640342

640342 backwards is 243046
The number of decimal digits it has is: 6
The sum of 640342's digits is 19
More coming soon!

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The information we have on file for 640342 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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