# 28980

## 28,980 is an even composite number composed of five prime numbers multiplied together.

What does the number 28980 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 72 divisors.

28980 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.

## Prime factorization of 28980:

### 22 × 32 × 5 × 7 × 23

(2 × 2 × 3 × 3 × 5 × 7 × 23)

See below for interesting mathematical facts about the number 28980 from the Numbermatics database.

### Names of 28980

• Cardinal: 28980 can be written as Twenty-eight thousand, nine hundred eighty.

### Scientific notation

• Scientific notation: 2.898 × 104

### Factors of 28980

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 40

### Divisors of 28980

• Number of divisors d(n): 72
• Complete list of divisors:
• Sum of all divisors σ(n): 104832
• Sum of proper divisors (its aliquot sum) s(n): 75852
• 28980 is an abundant number, because the sum of its proper divisors (75852) is greater than itself. Its abundance is 46872

### Bases of 28980

• Binary: 1110001001101002
• Base-36: MD0

### Squares and roots of 28980

• 28980 squared (289802) is 839840400
• 28980 cubed (289803) is 24338574792000
• The square root of 28980 is 170.2351315093
• The cube root of 28980 is 30.7161038353

### Scales and comparisons

How big is 28980?
• 28,980 seconds is equal to 8 hours, 3 minutes.
• To count from 1 to 28,980 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 28980 cubic inches would be around 2.6 feet tall.

### Recreational maths with 28980

• 28980 backwards is 08982
• The number of decimal digits it has is: 5
• The sum of 28980's digits is 27
• More coming soon!