21090680

21,090,680 is an even composite number composed of four prime numbers multiplied together.

What does the number 21090680 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 32 divisors.

21090680 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 21090680:

2³ × 5 × 13 × 40559

(2 × 2 × 2 × 5 × 13 × 40559)

See below for interesting mathematical facts about the number 21090680 from the Numbermatics database.

Names of 21090680

Cardinal: 21090680 can be written as Twenty-one million, ninety thousand, six hundred eighty.

Scientific notation

Scientific notation: 2.109068 × 10⁷

Factors of 21090680

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 40579

Divisors of 21090680

Number of divisors d(n): 32
Complete list of divisors:
1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 40559 81118 162236 202795 324472 405590 527267 811180 1054534 1622360 2109068 2636335 4218136 5272670 10545340 21090680
Sum of all divisors σ(n): 51105600
Sum of proper divisors (its aliquot sum) s(n): 30014920
21090680 is an abundant number, because the sum of its proper divisors (30014920) is greater than itself. Its abundance is 8924240

Bases of 21090680

Binary: 1010000011101000101111000₂
Hexadecimal: 0x141D178
Base-36: CK1O8

Squares and roots of 21090680

21090680 squared (21090680²) is 444816782862400
21090680 cubed (21090680³) is 9381488425980362432000
The square root of 21090680 is 4592.4590362899
The cube root of 21090680 is 276.2889573309

Scales and comparisons

How big is 21090680?

21,090,680 seconds is equal to 34 weeks, 6 days, 2 hours, 31 minutes, 20 seconds.
To count from 1 to 21,090,680 would take you about two days!

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 21090680 cubic inches would be around 23 feet tall.

Recreational maths with 21090680

21090680 backwards is 08609012
21090680 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21090680's digits is 26
More coming soon!

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The information we have on file for 21090680 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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