728872

728,872 is an even composite number composed of three prime numbers multiplied together.

What does the number 728872 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 16 divisors.

728872 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 728872:

2³ × 31 × 2939

(2 × 2 × 2 × 31 × 2939)

See below for interesting mathematical facts about the number 728872 from the Numbermatics database.

Names of 728872

Cardinal: 728872 can be written as Seven hundred twenty-eight thousand, eight hundred seventy-two.

Scientific notation

Scientific notation: 7.28872 × 10⁵

Factors of 728872

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 2972

Divisors of 728872

Number of divisors d(n): 16
Complete list of divisors:
1 2 4 8 31 62 124 248 2939 5878 11756 23512 91109 182218 364436 728872
Sum of all divisors σ(n): 1411200
Sum of proper divisors (its aliquot sum) s(n): 682328
728872 is a deficient number, because the sum of its proper divisors (682328) is less than itself. Its deficiency is 46544

Bases of 728872

Binary: 10110001111100101000₂
Hexadecimal: 0xB1F28
Base-36: FMEG

Squares and roots of 728872

728872 squared (728872²) is 531254392384
728872 cubed (728872³) is 387216451485710848
The square root of 728872 is 853.7400072621
The cube root of 728872 is 89.9947322019

Scales and comparisons

How big is 728872?

728,872 seconds is equal to 1 week, 1 day, 10 hours, 27 minutes, 52 seconds.
To count from 1 to 728,872 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 728872 cubic inches would be around 7.5 feet tall.

Recreational maths with 728872

728872 backwards is 278827
The number of decimal digits it has is: 6
The sum of 728872's digits is 34
More coming soon!

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The information we have on file for 728872 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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