# 138568320

## 138,568,320 is an even composite number composed of four prime numbers multiplied together.

What does the number 138568320 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 320 divisors.

138568320 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.

## Prime factorization of 138568320:

### 27 × 39 × 5 × 11

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 11)

See below for interesting mathematical facts about the number 138568320 from the Numbermatics database.

### Names of 138568320

• Cardinal: 138568320 can be written as One hundred thirty-eight million, five hundred sixty-eight thousand, three hundred twenty.

### Scientific notation

• Scientific notation: 1.3856832 × 108

### Factors of 138568320

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 21

### Divisors of 138568320

• Number of divisors d(n): 320
• Complete list of divisors:
• Sum of all divisors σ(n): 542060640
• Sum of proper divisors (its aliquot sum) s(n): 403492320
• 138568320 is an abundant number, because the sum of its proper divisors (403492320) is greater than itself. Its abundance is 264924000

### Bases of 138568320

• Binary: 10000100001001100010100000002
• Base-36: 2AI000

### Squares and roots of 138568320

• 138568320 squared (1385683202) is 19201179307622400
• 138568320 cubed (1385683203) is 2660675158675999162368000
• The square root of 138568320 is 11771.5045767309
• The cube root of 138568320 is 517.4733445627

### Scales and comparisons

How big is 138568320?
• 138,568,320 seconds is equal to 4 years, 21 weeks, 19 hours, 12 minutes.
• To count from 1 to 138,568,320 would take you about six years!

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 138568320 cubic inches would be around 43.1 feet tall.

### Recreational maths with 138568320

• 138568320 backwards is 023865831
• 138568320 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138568320's digits is 36
• More coming soon!