# 28439

## 28,439 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 28439 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

28439 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 28439:

### 28439

See below for interesting mathematical facts about the number 28439 from the Numbermatics database.

### Names of 28439

• Cardinal: 28439 can be written as Twenty-eight thousand, four hundred thirty-nine.

### Scientific notation

• Scientific notation: 2.8439 × 104

### Factors of 28439

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 28439

### Divisors of 28439

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 28440
• Sum of proper divisors (its aliquot sum) s(n): 1
• 28439 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 28438

### Bases of 28439

• Binary: 1101111000101112
• Base-36: LXZ

### Squares and roots of 28439

• 28439 squared (284392) is 808776721
• 28439 cubed (284393) is 23000801168519
• The square root of 28439 is 168.6386669777
• The cube root of 28439 is 30.5237654063

### Scales and comparisons

How big is 28439?
• 28,439 seconds is equal to 7 hours, 53 minutes, 59 seconds.
• To count from 1 to 28,439 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 28439 cubic inches would be around 2.5 feet tall.

### Recreational maths with 28439

• 28439 backwards is 93482
• The number of decimal digits it has is: 5
• The sum of 28439's digits is 26
• More coming soon!

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The information we have on file for 28439 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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