21477

21,477 is an odd composite number composed of two prime numbers multiplied together.

What does the number 21477 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

21477 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 21477:

3 × 7159

See below for interesting mathematical facts about the number 21477 from the Numbermatics database.

Names of 21477

Cardinal: 21477 can be written as Twenty-one thousand, four hundred seventy-seven.

Scientific notation

Scientific notation: 2.1477 × 10⁴

Factors of 21477

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 7162

Divisors of 21477

Number of divisors d(n): 4
Complete list of divisors:
1 3 7159 21477
Sum of all divisors σ(n): 28640
Sum of proper divisors (its aliquot sum) s(n): 7163
21477 is a deficient number, because the sum of its proper divisors (7163) is less than itself. Its deficiency is 14314

Bases of 21477

Binary: 101001111100101₂
Hexadecimal: 0x53E5
Base-36: GKL

Squares and roots of 21477

21477 squared (21477²) is 461261529
21477 cubed (21477³) is 9906513858333
The square root of 21477 is 146.5503326503
The cube root of 21477 is 27.7965698027

Scales and comparisons

How big is 21477?

21,477 seconds is equal to 5 hours, 57 minutes, 57 seconds.
To count from 1 to 21,477 would take you about five 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 21477 cubic inches would be around 2.3 feet tall.

Recreational maths with 21477

21477 backwards is 77412
The number of decimal digits it has is: 5
The sum of 21477's digits is 21
More coming soon!

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The information we have on file for 21477 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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