# 28900

## 28,900 is an even composite number composed of three prime numbers multiplied together.

What does the number 28900 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 27 divisors.

28900 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty-seven divisors.

## Prime factorization of 28900:

### 22 × 52 × 172

(2 × 2 × 5 × 5 × 17 × 17)

See below for interesting mathematical facts about the number 28900 from the Numbermatics database.

### Names of 28900

• Cardinal: 28900 can be written as Twenty-eight thousand, nine hundred.

### Scientific notation

• Scientific notation: 2.89 × 104

### Factors of 28900

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 24

### Divisors of 28900

• Number of divisors d(n): 27
• Complete list of divisors:
• Sum of all divisors σ(n): 66619
• Sum of proper divisors (its aliquot sum) s(n): 37719
• 28900 is an abundant number, because the sum of its proper divisors (37719) is greater than itself. Its abundance is 8819

### Bases of 28900

• Binary: 1110000111001002
• Base-36: MAS

### Squares and roots of 28900

• 28900 squared (289002) is 835210000
• 28900 cubed (289003) is 24137569000000
• 28900 is a perfect square number. Its square root is 170
• The cube root of 28900 is 30.6878136017

### Scales and comparisons

How big is 28900?
• 28,900 seconds is equal to 8 hours, 1 minute, 40 seconds.
• To count from 1 to 28,900 would take you about eight 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 28900 cubic inches would be around 2.6 feet tall.

### Recreational maths with 28900

• 28900 backwards is 00982
• The number of decimal digits it has is: 5
• The sum of 28900's digits is 19
• More coming soon!

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The information we have on file for 28900 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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