21090591

21,090,591 is an odd composite number composed of three prime numbers multiplied together.

What does the number 21090591 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 16 divisors.

21090591 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 21090591:

3³ × 17 × 45949

(3 × 3 × 3 × 17 × 45949)

See below for interesting mathematical facts about the number 21090591 from the Numbermatics database.

Names of 21090591

Cardinal: 21090591 can be written as Twenty-one million, ninety thousand, five hundred ninety-one.

Scientific notation

Scientific notation: 2.1090591 × 10⁷

Factors of 21090591

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 45969

Divisors of 21090591

Number of divisors d(n): 16
Complete list of divisors:
1 3 9 17 27 51 153 459 45949 137847 413541 781133 1240623 2343399 7030197 21090591
Sum of all divisors σ(n): 33084000
Sum of proper divisors (its aliquot sum) s(n): 11993409
21090591 is a deficient number, because the sum of its proper divisors (11993409) is less than itself. Its deficiency is 9097182

Bases of 21090591

Binary: 1010000011101000100011111₂
Hexadecimal: 0x141D11F
Base-36: CK1LR

Squares and roots of 21090591

21090591 squared (21090591²) is 444813028729281
21090591 cubed (21090591³) is 9381369660400515295071
The square root of 21090591 is 4592.4493464817
The cube root of 21090591 is 276.2885686953

Scales and comparisons

How big is 21090591?

21,090,591 seconds is equal to 34 weeks, 6 days, 2 hours, 29 minutes, 51 seconds.
To count from 1 to 21,090,591 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 21090591 cubic inches would be around 23 feet tall.

Recreational maths with 21090591

21090591 backwards is 19509012
21090591 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21090591's digits is 27
More coming soon!

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The information we have on file for 21090591 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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