13991521

13,991,521 is an odd composite number composed of two prime numbers multiplied together.

What does the number 13991521 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

13991521 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 13991521:

23² × 26449

(23 × 23 × 26449)

See below for interesting mathematical facts about the number 13991521 from the Numbermatics database.

Names of 13991521

Cardinal: 13991521 can be written as Thirteen million, nine hundred ninety-one thousand, five hundred twenty-one.

Scientific notation

Scientific notation: 1.3991521 × 10⁷

Factors of 13991521

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 26472

Divisors of 13991521

Number of divisors d(n): 6
Complete list of divisors:
1 23 529 26449 608327 13991521
Sum of all divisors σ(n): 14626850
Sum of proper divisors (its aliquot sum) s(n): 635329
13991521 is a deficient number, because the sum of its proper divisors (635329) is less than itself. Its deficiency is 13356192

Bases of 13991521

Binary: 110101010111111001100001₂
Hexadecimal: 0xD57E61
Base-36: 8BVXD

Squares and roots of 13991521

13991521 squared (13991521²) is 195762659893441
13991521 cubed (13991521³) is 2739017366914937513761
The square root of 13991521 is 3740.5241611303
The cube root of 13991521 is 240.9655604097

Scales and comparisons

How big is 13991521?

13,991,521 seconds is equal to 23 weeks, 22 hours, 32 minutes, 1 second.
To count from 1 to 13,991,521 would take you about thirty-four 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 13991521 cubic inches would be around 20.1 feet tall.

Recreational maths with 13991521

13991521 backwards is 12519931
The number of decimal digits it has is: 8
The sum of 13991521's digits is 31
More coming soon!

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The information we have on file for 13991521 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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