21477872

21,477,872 is an even composite number composed of three prime numbers multiplied together.

What does the number 21477872 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 50 divisors.

21477872 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of fifty divisors.

Prime factorization of 21477872:

2⁴ × 13⁴ × 47

(2 × 2 × 2 × 2 × 13 × 13 × 13 × 13 × 47)

See below for interesting mathematical facts about the number 21477872 from the Numbermatics database.

Names of 21477872

Cardinal: 21477872 can be written as Twenty-one million, four hundred seventy-seven thousand, eight hundred seventy-two.

Scientific notation

Scientific notation: 2.1477872 × 10⁷

Factors of 21477872

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 9
Sum of prime factors: 62

Divisors of 21477872

Number of divisors d(n): 50
Complete list of divisors:
1 2 4 8 13 16 26 47 52 94 104 169 188 208 338 376 611 676 752 1222 1352 2197 2444 2704 4394 4888 7943 8788 9776 15886 17576 28561 31772 35152 57122 63544 103259 114244 127088 206518 228488 413036 456976 826072 1342367 1652144 2684734 5369468 10738936 21477872
Sum of all divisors σ(n): 46040208
Sum of proper divisors (its aliquot sum) s(n): 24562336
21477872 is an abundant number, because the sum of its proper divisors (24562336) is greater than itself. Its abundance is 3084464

Bases of 21477872

Binary: 1010001111011100111110000₂
Hexadecimal: 0x147B9F0
Base-36: CSCFK

Squares and roots of 21477872

21477872 squared (21477872²) is 461298985648384
21477872 cubed (21477872³) is 9907720567485828558848
The square root of 21477872 is 4634.4225098711
The cube root of 21477872 is 277.9694599233

Scales and comparisons

How big is 21477872?

21,477,872 seconds is equal to 35 weeks, 3 days, 14 hours, 4 minutes, 32 seconds.
To count from 1 to 21,477,872 would take you about twenty-one 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 21477872 cubic inches would be around 23.2 feet tall.

Recreational maths with 21477872

21477872 backwards is 27877412
The number of decimal digits it has is: 8
The sum of 21477872's digits is 38
More coming soon!

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The information we have on file for 21477872 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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