21009164

21,009,164 is an even composite number composed of three prime numbers multiplied together.

What does the number 21009164 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 18 divisors.

21009164 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eighteen divisors.

Prime factorization of 21009164:

2² × 11 × 691²

(2 × 2 × 11 × 691 × 691)

See below for interesting mathematical facts about the number 21009164 from the Numbermatics database.

Names of 21009164

Cardinal: 21009164 can be written as Twenty-one million, nine thousand, one hundred sixty-four.

Scientific notation

Scientific notation: 2.1009164 × 10⁷

Factors of 21009164

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 704

Divisors of 21009164

Number of divisors d(n): 18
Complete list of divisors:
1 2 4 11 22 44 691 1382 2764 7601 15202 30404 477481 954962 1909924 5252291 10504582 21009164
Sum of all divisors σ(n): 40166532
Sum of proper divisors (its aliquot sum) s(n): 19157368
21009164 is a deficient number, because the sum of its proper divisors (19157368) is less than itself. Its deficiency is 1851796

Bases of 21009164

Binary: 1010000001001001100001100₂
Hexadecimal: 0x140930C
Base-36: CIARW

Squares and roots of 21009164

21009164 squared (21009164²) is 441384971978896
21009164 cubed (21009164³) is 9273129263440030602944
The square root of 21009164 is 4583.5754602711
The cube root of 21009164 is 275.9325432007

Scales and comparisons

How big is 21009164?

21,009,164 seconds is equal to 34 weeks, 5 days, 3 hours, 52 minutes, 44 seconds.
To count from 1 to 21,009,164 would take you about seventeen hours!

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 21009164 cubic inches would be around 23 feet tall.

Recreational maths with 21009164

21009164 backwards is 46190012
The number of decimal digits it has is: 8
The sum of 21009164's digits is 23
More coming soon!

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The information we have on file for 21009164 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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