# 38720

## 38,720 is an even composite number composed of three prime numbers multiplied together.

What does the number 38720 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 42 divisors.

38720 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of forty-two divisors.

## Prime factorization of 38720:

### 26 × 5 × 112

(2 × 2 × 2 × 2 × 2 × 2 × 5 × 11 × 11)

See below for interesting mathematical facts about the number 38720 from the Numbermatics database.

### Names of 38720

• Cardinal: 38720 can be written as Thirty-eight thousand, seven hundred twenty.

### Scientific notation

• Scientific notation: 3.872 × 104

### Factors of 38720

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 18

### Divisors of 38720

• Number of divisors d(n): 42
• Complete list of divisors:
• Sum of all divisors σ(n): 101346
• Sum of proper divisors (its aliquot sum) s(n): 62626
• 38720 is an abundant number, because the sum of its proper divisors (62626) is greater than itself. Its abundance is 23906

### Bases of 38720

• Binary: 10010111010000002
• Base-36: TVK

### Squares and roots of 38720

• 38720 squared (387202) is 1499238400
• 38720 cubed (387203) is 58050510848000
• The square root of 38720 is 196.7739820199
• The cube root of 38720 is 33.8307622325

### Scales and comparisons

How big is 38720?
• 38,720 seconds is equal to 10 hours, 45 minutes, 20 seconds.
• To count from 1 to 38,720 would take you about ten 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 38720 cubic inches would be around 2.8 feet tall.

### Recreational maths with 38720

• 38720 backwards is 02783
• 38720 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 38720's digits is 20
• More coming soon!