20971264

20,971,264 is an even composite number composed of two prime numbers multiplied together.

What does the number 20971264 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 18 divisors.

20971264 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of eighteen divisors.

Prime factorization of 20971264:

2⁸ × 81919

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 81919)

See below for interesting mathematical facts about the number 20971264 from the Numbermatics database.

Names of 20971264

Cardinal: 20971264 can be written as Twenty million, nine hundred seventy-one thousand, two hundred sixty-four.

Scientific notation

Scientific notation: 2.0971264 × 10⁷

Factors of 20971264

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 9
Sum of prime factors: 81921

Divisors of 20971264

Number of divisors d(n): 18
Complete list of divisors:
1 2 4 8 16 32 64 128 256 81919 163838 327676 655352 1310704 2621408 5242816 10485632 20971264
Sum of all divisors σ(n): 41861120
Sum of proper divisors (its aliquot sum) s(n): 20889856
20971264 is a deficient number, because the sum of its proper divisors (20889856) is less than itself. Its deficiency is 81408

Bases of 20971264

Binary: 1001111111111111100000000₂
Hexadecimal: 0x13FFF00
Base-36: CHHJ4

Squares and roots of 20971264

20971264 squared (20971264²) is 439793913757696
20971264 cubed (20971264³) is 9223034271005874847744
The square root of 20971264 is 4579.4392669845
The cube root of 20971264 is 275.7665182181

Scales and comparisons

How big is 20971264?

20,971,264 seconds is equal to 34 weeks, 4 days, 17 hours, 21 minutes, 4 seconds.
To count from 1 to 20,971,264 would take you about two 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 20971264 cubic inches would be around 23 feet tall.

Recreational maths with 20971264

20971264 backwards is 46217902
The number of decimal digits it has is: 8
The sum of 20971264's digits is 31
More coming soon!

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The information we have on file for 20971264 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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