# 438

## 438 is an even composite number composed of three prime numbers multiplied together.

What does the number 438 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

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

## Prime factorization of 438:

### 2 × 3 × 73

See below for interesting mathematical facts about the number 438 from the Numbermatics database.

### Names of 438

• Cardinal: 438 can be written as Four hundred thirty-eight.

### Scientific notation

• Scientific notation: 4.38 × 102

### Factors of 438

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 78

### Divisors of 438

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 888
• Sum of proper divisors (its aliquot sum) s(n): 450
• 438 is an abundant number, because the sum of its proper divisors (450) is greater than itself. Its abundance is 12

### Bases of 438

• Binary: 1101101102
• Base-36: C6

### Squares and roots of 438

• 438 squared (4382) is 191844
• 438 cubed (4383) is 84027672
• The square root of 438 is 20.9284495365
• The cube root of 438 is 7.5943633181

### Scales and comparisons

How big is 438?
• 438 seconds is equal to 7 minutes, 18 seconds.
• To count from 1 to 438 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 438 cubic inches would be around 0.6 feet tall.

### Recreational maths with 438

• 438 backwards is 834
• The number of decimal digits it has is: 3
• The sum of 438's digits is 15
• More coming soon!