21006824

21,006,824 is an even composite number composed of three prime numbers multiplied together.

What does the number 21006824 look like?

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

21006824 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 21006824:

2³ × 37 × 70969

(2 × 2 × 2 × 37 × 70969)

See below for interesting mathematical facts about the number 21006824 from the Numbermatics database.

Names of 21006824

Cardinal: 21006824 can be written as Twenty-one million, six thousand, eight hundred twenty-four.

Scientific notation

Scientific notation: 2.1006824 × 10⁷

Factors of 21006824

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 71008

Divisors of 21006824

Number of divisors d(n): 16
Complete list of divisors:
1 2 4 8 37 74 148 296 70969 141938 283876 567752 2625853 5251706 10503412 21006824
Sum of all divisors σ(n): 40452900
Sum of proper divisors (its aliquot sum) s(n): 19446076
21006824 is a deficient number, because the sum of its proper divisors (19446076) is less than itself. Its deficiency is 1560748

Bases of 21006824

Binary: 1010000001000100111101000₂
Hexadecimal: 0x14089E8
Base-36: CI8YW

Squares and roots of 21006824

21006824 squared (21006824²) is 441286654566976
21006824 cubed (21006824³) is 9270031086037261044224
The square root of 21006824 is 4583.3201939207
The cube root of 21006824 is 275.9222983679

Scales and comparisons

How big is 21006824?

21,006,824 seconds is equal to 34 weeks, 5 days, 3 hours, 13 minutes, 44 seconds.
To count from 1 to 21,006,824 would take you about sixteen 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 21006824 cubic inches would be around 23 feet tall.

Recreational maths with 21006824

21006824 backwards is 42860012
The number of decimal digits it has is: 8
The sum of 21006824's digits is 23
More coming soon!

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The information we have on file for 21006824 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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