# 328

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

What does the number 328 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 8 divisors.

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

## Prime factorization of 328:

### 23 × 41

(2 × 2 × 2 × 41)

See below for interesting mathematical facts about the number 328 from the Numbermatics database.

### Names of 328

• Cardinal: 328 can be written as Three hundred twenty-eight.

### Scientific notation

• Scientific notation: 3.28 × 102

### Factors of 328

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 43

### Divisors of 328

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 630
• Sum of proper divisors (its aliquot sum) s(n): 302
• 328 is a deficient number, because the sum of its proper divisors (302) is less than itself. Its deficiency is 26

### Bases of 328

• Binary: 1010010002
• Base-36: 94

### Squares and roots of 328

• 328 squared (3282) is 107584
• 328 cubed (3283) is 35287552
• The square root of 328 is 18.1107702763
• The cube root of 328 is 6.8964344807

### Scales and comparisons

How big is 328?
• 328 seconds is equal to 5 minutes, 28 seconds.
• To count from 1 to 328 would take you about two 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 328 cubic inches would be around 0.6 feet tall.

### Recreational maths with 328

• 328 backwards is 823
• The number of decimal digits it has is: 3
• The sum of 328's digits is 13
• More coming soon!