728431

728,431 is an odd composite number composed of two prime numbers multiplied together.

What does the number 728431 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

728431 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 728431:

11 × 66221

See below for interesting mathematical facts about the number 728431 from the Numbermatics database.

Names of 728431

Cardinal: 728431 can be written as Seven hundred twenty-eight thousand, four hundred thirty-one.

Scientific notation

Scientific notation: 7.28431 × 10⁵

Factors of 728431

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 66232

Divisors of 728431

Number of divisors d(n): 4
Complete list of divisors:
1 11 66221 728431
Sum of all divisors σ(n): 794664
Sum of proper divisors (its aliquot sum) s(n): 66233
728431 is a deficient number, because the sum of its proper divisors (66233) is less than itself. Its deficiency is 662198

Bases of 728431

Binary: 10110001110101101111₂
Hexadecimal: 0xB1D6F
Base-36: FM27

Squares and roots of 728431

728431 squared (728431²) is 530611721761
728431 cubed (728431³) is 386514027094086991
The square root of 728431 is 853.4816928325
The cube root of 728431 is 89.9765782673

Scales and comparisons

How big is 728431?

728,431 seconds is equal to 1 week, 1 day, 10 hours, 20 minutes, 31 seconds.
To count from 1 to 728,431 would take you about ten 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 728431 cubic inches would be around 7.5 feet tall.

Recreational maths with 728431

728431 backwards is 134827
The number of decimal digits it has is: 6
The sum of 728431's digits is 25
More coming soon!

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The information we have on file for 728431 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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