21082816

21,082,816 is an even composite number composed of two prime numbers multiplied together.

What does the number 21082816 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 14 divisors.

21082816 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of fourteen divisors.

Prime factorization of 21082816:

2⁶ × 329419

(2 × 2 × 2 × 2 × 2 × 2 × 329419)

See below for interesting mathematical facts about the number 21082816 from the Numbermatics database.

Names of 21082816

Cardinal: 21082816 can be written as Twenty-one million, eighty-two thousand, eight hundred sixteen.

Scientific notation

Scientific notation: 2.1082816 × 10⁷

Factors of 21082816

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 7
Sum of prime factors: 329421

Divisors of 21082816

Number of divisors d(n): 14
Complete list of divisors:
1 2 4 8 16 32 64 329419 658838 1317676 2635352 5270704 10541408 21082816
Sum of all divisors σ(n): 41836340
Sum of proper divisors (its aliquot sum) s(n): 20753524
21082816 is a deficient number, because the sum of its proper divisors (20753524) is less than itself. Its deficiency is 329292

Bases of 21082816

Binary: 1010000011011001011000000₂
Hexadecimal: 0x141B2C0
Base-36: CJVLS

Squares and roots of 21082816

21082816 squared (21082816²) is 444485130489856
21082816 cubed (21082816³) is 9370998220853623914496
The square root of 21082816 is 4591.6027702753
The cube root of 21082816 is 276.2546134649

Scales and comparisons

How big is 21082816?

21,082,816 seconds is equal to 34 weeks, 6 days, 20 minutes, 16 seconds.
To count from 1 to 21,082,816 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 21082816 cubic inches would be around 23 feet tall.

Recreational maths with 21082816

21082816 backwards is 61828012
The number of decimal digits it has is: 8
The sum of 21082816's digits is 28
More coming soon!

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The information we have on file for 21082816 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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