728816

728,816 is an even composite number composed of four prime numbers multiplied together.

What does the number 728816 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 40 divisors.

728816 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty divisors.

Prime factorization of 728816:

2⁴ × 11 × 41 × 101

(2 × 2 × 2 × 2 × 11 × 41 × 101)

See below for interesting mathematical facts about the number 728816 from the Numbermatics database.

Names of 728816

Cardinal: 728816 can be written as Seven hundred twenty-eight thousand, eight hundred sixteen.

Scientific notation

Scientific notation: 7.28816 × 10⁵

Factors of 728816

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 155

Divisors of 728816

Number of divisors d(n): 40
Complete list of divisors:
1 2 4 8 11 16 22 41 44 82 88 101 164 176 202 328 404 451 656 808 902 1111 1616 1804 2222 3608 4141 4444 7216 8282 8888 16564 17776 33128 45551 66256 91102 182204 364408 728816
Sum of all divisors σ(n): 1593648
Sum of proper divisors (its aliquot sum) s(n): 864832
728816 is an abundant number, because the sum of its proper divisors (864832) is greater than itself. Its abundance is 136016

Bases of 728816

Binary: 10110001111011110000₂
Hexadecimal: 0xB1EF0
Base-36: FMCW

Squares and roots of 728816

728816 squared (728816²) is 531172761856
728816 cubed (728816³) is 387127207604842496
The square root of 728816 is 853.7072097623
The cube root of 728816 is 89.9924273463

Scales and comparisons

How big is 728816?

728,816 seconds is equal to 1 week, 1 day, 10 hours, 26 minutes, 56 seconds.
To count from 1 to 728,816 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 728816 cubic inches would be around 7.5 feet tall.

Recreational maths with 728816

728816 backwards is 618827
The number of decimal digits it has is: 6
The sum of 728816's digits is 32
More coming soon!

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The information we have on file for 728816 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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