728081

728,081 is an odd composite number composed of two prime numbers multiplied together.

What does the number 728081 look like?

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

728081 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 728081:

257 × 2833

See below for interesting mathematical facts about the number 728081 from the Numbermatics database.

Names of 728081

Cardinal: 728081 can be written as Seven hundred twenty-eight thousand and eighty-one.

Scientific notation

Scientific notation: 7.28081 × 10⁵

Factors of 728081

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 3090

Divisors of 728081

Number of divisors d(n): 4
Complete list of divisors:
1 257 2833 728081
Sum of all divisors σ(n): 731172
Sum of proper divisors (its aliquot sum) s(n): 3091
728081 is a deficient number, because the sum of its proper divisors (3091) is less than itself. Its deficiency is 724990

Bases of 728081

Binary: 10110001110000010001₂
Hexadecimal: 0xB1C11
Base-36: FLSH

Squares and roots of 728081

728081 squared (728081²) is 530101942561
728081 cubed (728081³) is 385957152441755441
The square root of 728081 is 853.2766257199
The cube root of 728081 is 89.9621651669

Scales and comparisons

How big is 728081?

728,081 seconds is equal to 1 week, 1 day, 10 hours, 14 minutes, 41 seconds.
To count from 1 to 728,081 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 728081 cubic inches would be around 7.5 feet tall.

Recreational maths with 728081

728081 backwards is 180827
The number of decimal digits it has is: 6
The sum of 728081's digits is 26
More coming soon!

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The information we have on file for 728081 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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