# 39749

## 39,749 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 39749 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

39749 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 39749:

### 39749

See below for interesting mathematical facts about the number 39749 from the Numbermatics database.

### Names of 39749

• Cardinal: 39749 can be written as Thirty-nine thousand, seven hundred forty-nine.

### Scientific notation

• Scientific notation: 3.9749 × 104

### Factors of 39749

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 39749

### Divisors of 39749

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 39750
• Sum of proper divisors (its aliquot sum) s(n): 1
• 39749 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 39748

### Bases of 39749

• Binary: 10011011010001012
• Base-36: UO5

### Squares and roots of 39749

• 39749 squared (397492) is 1579983001
• 39749 cubed (397493) is 62802744306749
• The square root of 39749 is 199.3715125087
• The cube root of 39749 is 34.1278347907

### Scales and comparisons

How big is 39749?
• 39,749 seconds is equal to 11 hours, 2 minutes, 29 seconds.
• To count from 1 to 39,749 would take you about eleven 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 39749 cubic inches would be around 2.8 feet tall.

### Recreational maths with 39749

• 39749 backwards is 94793
• The number of decimal digits it has is: 5
• The sum of 39749's digits is 32
• More coming soon!