# 28520

## 28,520 is an even composite number composed of four prime numbers multiplied together.

What does the number 28520 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 32 divisors.

28520 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

## Prime factorization of 28520:

### 23 × 5 × 23 × 31

(2 × 2 × 2 × 5 × 23 × 31)

See below for interesting mathematical facts about the number 28520 from the Numbermatics database.

### Names of 28520

• Cardinal: 28520 can be written as Twenty-eight thousand, five hundred twenty.

### Scientific notation

• Scientific notation: 2.852 × 104

### Factors of 28520

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 61

### Divisors of 28520

• Number of divisors d(n): 32
• Complete list of divisors:
• Sum of all divisors σ(n): 69120
• Sum of proper divisors (its aliquot sum) s(n): 40600
• 28520 is an abundant number, because the sum of its proper divisors (40600) is greater than itself. Its abundance is 12080

### Bases of 28520

• Binary: 1101111011010002
• Base-36: M08

### Squares and roots of 28520

• 28520 squared (285202) is 813390400
• 28520 cubed (285203) is 23197894208000
• The square root of 28520 is 168.8786546607
• The cube root of 28520 is 30.5527172143

### Scales and comparisons

How big is 28520?
• 28,520 seconds is equal to 7 hours, 55 minutes, 20 seconds.
• To count from 1 to 28,520 would take you about seven 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 28520 cubic inches would be around 2.5 feet tall.

### Recreational maths with 28520

• 28520 backwards is 02582
• The number of decimal digits it has is: 5
• The sum of 28520's digits is 17
• More coming soon!

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The information we have on file for 28520 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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