21475

21,475 is an odd composite number composed of two prime numbers multiplied together.

What does the number 21475 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

21475 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 21475:

5² × 859

(5 × 5 × 859)

See below for interesting mathematical facts about the number 21475 from the Numbermatics database.

Names of 21475

Cardinal: 21475 can be written as Twenty-one thousand, four hundred seventy-five.

Scientific notation

Scientific notation: 2.1475 × 10⁴

Factors of 21475

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 864

Divisors of 21475

Number of divisors d(n): 6
Complete list of divisors:
1 5 25 859 4295 21475
Sum of all divisors σ(n): 26660
Sum of proper divisors (its aliquot sum) s(n): 5185
21475 is a deficient number, because the sum of its proper divisors (5185) is less than itself. Its deficiency is 16290

Bases of 21475

Binary: 101001111100011₂
Hexadecimal: 0x53E3
Base-36: GKJ

Squares and roots of 21475

21475 squared (21475²) is 461175625
21475 cubed (21475³) is 9903746546875
The square root of 21475 is 146.5435088975
The cube root of 21475 is 27.7957069437

Scales and comparisons

How big is 21475?

21,475 seconds is equal to 5 hours, 57 minutes, 55 seconds.
To count from 1 to 21,475 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 21475 cubic inches would be around 2.3 feet tall.

Recreational maths with 21475

21475 backwards is 57412
The number of decimal digits it has is: 5
The sum of 21475's digits is 19
More coming soon!

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The information we have on file for 21475 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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