21129927

21,129,927 is an odd composite number composed of four prime numbers multiplied together.

What does the number 21129927 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

21129927 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 21129927:

3 × 7² × 13 × 11057

(3 × 7 × 7 × 13 × 11057)

See below for interesting mathematical facts about the number 21129927 from the Numbermatics database.

Names of 21129927

Cardinal: 21129927 can be written as Twenty-one million, one hundred twenty-nine thousand, nine hundred twenty-seven.

Scientific notation

Scientific notation: 2.1129927 × 10⁷

Factors of 21129927

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 11080

Divisors of 21129927

Number of divisors d(n): 24
Complete list of divisors:
1 3 7 13 21 39 49 91 147 273 637 1911 11057 33171 77399 143741 232197 431223 541793 1006187 1625379 3018561 7043309 21129927
Sum of all divisors σ(n): 35297136
Sum of proper divisors (its aliquot sum) s(n): 14167209
21129927 is a deficient number, because the sum of its proper divisors (14167209) is less than itself. Its deficiency is 6962718

Bases of 21129927

Binary: 1010000100110101011000111₂
Hexadecimal: 0x1426AC7
Base-36: CKVYF

Squares and roots of 21129927

21129927 squared (21129927²) is 446473815025329
21129927 cubed (21129927³) is 9433959118896704920983
The square root of 21129927 is 4596.7300334041
The cube root of 21129927 is 276.4602303533

Scales and comparisons

How big is 21129927?

21,129,927 seconds is equal to 34 weeks, 6 days, 13 hours, 25 minutes, 27 seconds.
To count from 1 to 21,129,927 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 21129927 cubic inches would be around 23 feet tall.

Recreational maths with 21129927

21129927 backwards is 72992112
The number of decimal digits it has is: 8
The sum of 21129927's digits is 33
More coming soon!

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The information we have on file for 21129927 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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