# 28445

## 28,445 is an odd composite number composed of two prime numbers multiplied together.

What does the number 28445 look like?

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

28445 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 28445:

### 5 × 5689

See below for interesting mathematical facts about the number 28445 from the Numbermatics database.

### Names of 28445

• Cardinal: 28445 can be written as Twenty-eight thousand, four hundred forty-five.

### Scientific notation

• Scientific notation: 2.8445 × 104

### Factors of 28445

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 5694

### Divisors of 28445

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 34140
• Sum of proper divisors (its aliquot sum) s(n): 5695
• 28445 is a deficient number, because the sum of its proper divisors (5695) is less than itself. Its deficiency is 22750

### Bases of 28445

• Binary: 1101111000111012
• Base-36: LY5

### Squares and roots of 28445

• 28445 squared (284452) is 809118025
• 28445 cubed (284453) is 23015362221125
• The square root of 28445 is 168.6564555537
• The cube root of 28445 is 30.5259118685

### Scales and comparisons

How big is 28445?
• 28,445 seconds is equal to 7 hours, 54 minutes, 5 seconds.
• To count from 1 to 28,445 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 28445 cubic inches would be around 2.5 feet tall.

### Recreational maths with 28445

• 28445 backwards is 54482
• The number of decimal digits it has is: 5
• The sum of 28445's digits is 23
• More coming soon!

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The information we have on file for 28445 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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