# 28380

## 28,380 is an even composite number composed of five prime numbers multiplied together.

What does the number 28380 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

28380 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

## Prime factorization of 28380:

### 22 × 3 × 5 × 11 × 43

(2 × 2 × 3 × 5 × 11 × 43)

See below for interesting mathematical facts about the number 28380 from the Numbermatics database.

### Names of 28380

• Cardinal: 28380 can be written as Twenty-eight thousand, three hundred eighty.

### Scientific notation

• Scientific notation: 2.838 × 104

### Factors of 28380

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 64

### Divisors of 28380

• Number of divisors d(n): 48
• Complete list of divisors:
• Sum of all divisors σ(n): 88704
• Sum of proper divisors (its aliquot sum) s(n): 60324
• 28380 is an abundant number, because the sum of its proper divisors (60324) is greater than itself. Its abundance is 31944

### Bases of 28380

• Binary: 1101110110111002
• Base-36: LWC

### Squares and roots of 28380

• 28380 squared (283802) is 805424400
• 28380 cubed (283803) is 22857944472000
• The square root of 28380 is 168.4636459299
• The cube root of 28380 is 30.5026424299

### Scales and comparisons

How big is 28380?
• 28,380 seconds is equal to 7 hours, 53 minutes.
• To count from 1 to 28,380 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 28380 cubic inches would be around 2.5 feet tall.

### Recreational maths with 28380

• 28380 backwards is 08382
• The number of decimal digits it has is: 5
• The sum of 28380's digits is 21
• More coming soon!