20971520

20,971,520 is an even composite number composed of two prime numbers multiplied together.

What does the number 20971520 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 46 divisors.

20971520 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of forty-six divisors.

Prime factorization of 20971520:

2²² × 5

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5)

See below for interesting mathematical facts about the number 20971520 from the Numbermatics database.

Names of 20971520

Cardinal: 20971520 can be written as Twenty million, nine hundred seventy-one thousand, five hundred twenty.

Scientific notation

Scientific notation: 2.097152 × 10⁷

Factors of 20971520

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 23
Sum of prime factors: 7

Divisors of 20971520

Number of divisors d(n): 46
Complete list of divisors:
1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 640 1024 1280 2048 2560 4096 5120 8192 10240 16384 20480 32768 40960 65536 81920 131072 163840 262144 327680 524288 655360 1048576 1310720 2097152 2621440 4194304 5242880 10485760 20971520
Sum of all divisors σ(n): 50331642
Sum of proper divisors (its aliquot sum) s(n): 29360122
20971520 is an abundant number, because the sum of its proper divisors (29360122) is greater than itself. Its abundance is 8388602

Bases of 20971520

Binary: 1010000000000000000000000₂
Hexadecimal: 0x1400000
Base-36: CHHQ8

Squares and roots of 20971520

20971520 squared (20971520²) is 439804651110400
20971520 cubed (20971520³) is 9223372036854775808000
The square root of 20971520 is 4579.4672179195
The cube root of 20971520 is 275.7676403241

Scales and comparisons

How big is 20971520?

20,971,520 seconds is equal to 34 weeks, 4 days, 17 hours, 25 minutes, 20 seconds.
To count from 1 to 20,971,520 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 20971520 cubic inches would be around 23 feet tall.

Recreational maths with 20971520

20971520 backwards is 02517902
The number of decimal digits it has is: 8
The sum of 20971520's digits is 26
More coming soon!

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The information we have on file for 20971520 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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