640129

640,129 is an odd composite number composed of three prime numbers multiplied together.

What does the number 640129 look like?

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

640129 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 640129:

7 × 19 × 4813

See below for interesting mathematical facts about the number 640129 from the Numbermatics database.

Names of 640129

Cardinal: 640129 can be written as Six hundred forty thousand, one hundred twenty-nine.

Scientific notation

Scientific notation: 6.40129 × 10⁵

Factors of 640129

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 3
Sum of prime factors: 4839

Divisors of 640129

Number of divisors d(n): 8
Complete list of divisors:
1 7 19 133 4813 33691 91447 640129
Sum of all divisors σ(n): 770240
Sum of proper divisors (its aliquot sum) s(n): 130111
640129 is a deficient number, because the sum of its proper divisors (130111) is less than itself. Its deficiency is 510018

Bases of 640129

Binary: 10011100010010000001₂
Hexadecimal: 0x9C481
Base-36: DPXD

Squares and roots of 640129

640129 squared (640129²) is 409765136641
640129 cubed (640129³) is 262302547152866689
The square root of 640129 is 800.0806209377
The cube root of 640129 is 86.1831772555

Scales and comparisons

How big is 640129?

640,129 seconds is equal to 1 week, 9 hours, 48 minutes, 49 seconds.
To count from 1 to 640,129 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 640129 cubic inches would be around 7.2 feet tall.

Recreational maths with 640129

640129 backwards is 921046
The number of decimal digits it has is: 6
The sum of 640129's digits is 22
More coming soon!

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The information we have on file for 640129 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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