# 21104

## 21,104 is an even composite number composed of two prime numbers multiplied together.

What does the number 21104 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 10 divisors.

21104 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of ten divisors.

## Prime factorization of 21104:

### 24 × 1319

(2 × 2 × 2 × 2 × 1319)

See below for interesting mathematical facts about the number 21104 from the Numbermatics database.

### Names of 21104

• Cardinal: 21104 can be written as Twenty-one thousand, one hundred four.

### Scientific notation

• Scientific notation: 2.1104 × 104

### Factors of 21104

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1321

### Divisors of 21104

• Number of divisors d(n): 10
• Complete list of divisors:
• Sum of all divisors σ(n): 40920
• Sum of proper divisors (its aliquot sum) s(n): 19816
• 21104 is a deficient number, because the sum of its proper divisors (19816) is less than itself. Its deficiency is 1288

### Bases of 21104

• Binary: 1010010011100002
• Base-36: GA8

### Squares and roots of 21104

• 21104 squared (211042) is 445378816
• 21104 cubed (211043) is 9399274532864
• The square root of 21104 is 145.2721583787
• The cube root of 21104 is 27.6347109311

### Scales and comparisons

How big is 21104?
• 21,104 seconds is equal to 5 hours, 51 minutes, 44 seconds.
• To count from 1 to 21,104 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 21104 cubic inches would be around 2.3 feet tall.

### Recreational maths with 21104

• 21104 backwards is 40112
• 21104 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 21104's digits is 8
• More coming soon!

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The information we have on file for 21104 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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