# 138530

## 138,530 is an even composite number composed of four prime numbers multiplied together.

What does the number 138530 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 16 divisors.

138530 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

## Prime factorization of 138530:

### 2 × 5 × 7 × 1979

See below for interesting mathematical facts about the number 138530 from the Numbermatics database.

### Names of 138530

• Cardinal: 138530 can be written as One hundred thirty-eight thousand, five hundred thirty.

### Scientific notation

• Scientific notation: 1.3853 × 105

### Factors of 138530

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 1993

### Divisors of 138530

• Number of divisors d(n): 16
• Complete list of divisors:
• Sum of all divisors σ(n): 285120
• Sum of proper divisors (its aliquot sum) s(n): 146590
• 138530 is an abundant number, because the sum of its proper divisors (146590) is greater than itself. Its abundance is 8060

### Bases of 138530

• Binary: 1000011101001000102
• Base-36: 2YW2

### Squares and roots of 138530

• 138530 squared (1385302) is 19190560900
• 138530 cubed (1385303) is 2658468401477000
• The square root of 138530 is 372.1961848273
• The cube root of 138530 is 51.7425639077

### Scales and comparisons

How big is 138530?
• 138,530 seconds is equal to 14 hours, 28 minutes, 50 seconds.
• To count from 1 to 138,530 would take you about fourteen 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 138530 cubic inches would be around 4.3 feet tall.

### Recreational maths with 138530

• 138530 backwards is 035831
• The number of decimal digits it has is: 6
• The sum of 138530's digits is 20
• More coming soon!