# 388

## 388 is an even composite number composed of two prime numbers multiplied together.

What does the number 388 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

388 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

## Prime factorization of 388:

### 22 × 97

(2 × 2 × 97)

See below for interesting mathematical facts about the number 388 from the Numbermatics database.

### Names of 388

• Cardinal: 388 can be written as Three hundred eighty-eight.

### Scientific notation

• Scientific notation: 3.88 × 102

### Factors of 388

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 99

### Divisors of 388

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 686
• Sum of proper divisors (its aliquot sum) s(n): 298
• 388 is a deficient number, because the sum of its proper divisors (298) is less than itself. Its deficiency is 90

### Bases of 388

• Binary: 1100001002
• Base-36: AS

### Squares and roots of 388

• 388 squared (3882) is 150544
• 388 cubed (3883) is 58411072
• The square root of 388 is 19.6977156035
• The cube root of 388 is 7.2936330297

### Scales and comparisons

How big is 388?
• 388 seconds is equal to 6 minutes, 28 seconds.
• To count from 1 to 388 would take you about three minutes.

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 388 cubic inches would be around 0.6 feet tall.

### Recreational maths with 388

• 388 backwards is 883
• The number of decimal digits it has is: 3
• The sum of 388's digits is 19
• More coming soon!