13091728

13,091,728 is an even composite number composed of four prime numbers multiplied together.

What does the number 13091728 look like?

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

13091728 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 13091728:

2⁴ × 13 × 113 × 557

(2 × 2 × 2 × 2 × 13 × 113 × 557)

See below for interesting mathematical facts about the number 13091728 from the Numbermatics database.

Names of 13091728

Cardinal: 13091728 can be written as Thirteen million, ninety-one thousand, seven hundred twenty-eight.

Scientific notation

Scientific notation: 1.3091728 × 10⁷

Factors of 13091728

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 685

Divisors of 13091728

Number of divisors d(n): 40
Complete list of divisors:
1 2 4 8 13 16 26 52 104 113 208 226 452 557 904 1114 1469 1808 2228 2938 4456 5876 7241 8912 11752 14482 23504 28964 57928 62941 115856 125882 251764 503528 818233 1007056 1636466 3272932 6545864 13091728
Sum of all divisors σ(n): 27607608
Sum of proper divisors (its aliquot sum) s(n): 14515880
13091728 is an abundant number, because the sum of its proper divisors (14515880) is greater than itself. Its abundance is 1424152

Bases of 13091728

Binary: 110001111100001110010000₂
Hexadecimal: 0xC7C390
Base-36: 7SLN4

Squares and roots of 13091728

13091728 squared (13091728²) is 171393342025984
13091728 cubed (13091728³) is 2243835014815151460352
The square root of 13091728 is 3618.2493004215
The cube root of 13091728 is 235.6852070299

Scales and comparisons

How big is 13091728?

13,091,728 seconds is equal to 21 weeks, 4 days, 12 hours, 35 minutes, 28 seconds.
To count from 1 to 13,091,728 would take you about thirty-two weeks!

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 13091728 cubic inches would be around 19.6 feet tall.

Recreational maths with 13091728

13091728 backwards is 82719031
The number of decimal digits it has is: 8
The sum of 13091728's digits is 31
More coming soon!

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The information we have on file for 13091728 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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