# 39

## 39 is an odd composite number composed of two prime numbers multiplied together.

What does the number 39 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

39 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

## Prime factorization of 39:

### 3 × 13

See below for interesting mathematical facts about the number 39 from the Numbermatics database.

### Names of 39

• Cardinal: 39 can be written as Thirty-nine.

### Scientific notation

• Scientific notation: 3.9 × 101

### Factors of 39

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 16

### Divisors of 39

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 56
• Sum of proper divisors (its aliquot sum) s(n): 17
• 39 is a deficient number, because the sum of its proper divisors (17) is less than itself. Its deficiency is 22

### Bases of 39

• Binary: 1001112
• Base-36: 13

### Squares and roots of 39

• 39 squared (392) is 1521
• 39 cubed (393) is 59319
• The square root of 39 is 6.2449979984
• The cube root of 39 is 3.3912114431

### Scales and comparisons

How big is 39?
• A cube with a volume of 39 cubic inches would be around 0.3 feet tall.

### Recreational maths with 39

• 39 backwards is 93
• The number of decimal digits it has is: 2
• The sum of 39's digits is 12
• More coming soon!

MLA style:
"Number 39 - Facts about the integer". Numbermatics.com. 2021. Web. 23 October 2021.

APA style:
Numbermatics. (2021). Number 39 - Facts about the integer. Retrieved 23 October 2021, from https://numbermatics.com/n/39/

Chicago style:
Numbermatics. 2021. "Number 39 - Facts about the integer". https://numbermatics.com/n/39/

The information we have on file for 39 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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