# 31393609

## 31,393,609 is an odd composite number composed of two prime numbers multiplied together.

What does the number 31393609 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 9 divisors.

31393609 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of nine divisors.

## Prime factorization of 31393609:

### 132 × 4312

(13 × 13 × 431 × 431)

See below for interesting mathematical facts about the number 31393609 from the Numbermatics database.

### Names of 31393609

• Cardinal: 31393609 can be written as Thirty-one million, three hundred ninety-three thousand, six hundred nine.

### Scientific notation

• Scientific notation: 3.1393609 × 107

### Factors of 31393609

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 444

### Divisors of 31393609

• Number of divisors d(n): 9
• Complete list of divisors:
• Sum of all divisors σ(n): 34073319
• Sum of proper divisors (its aliquot sum) s(n): 2679710
• 31393609 is a deficient number, because the sum of its proper divisors (2679710) is less than itself. Its deficiency is 28713899

### Bases of 31393609

• Binary: 11101111100000111010010012
• Base-36: IOVGP

### Scales and comparisons

How big is 31393609?
• 31,393,609 seconds is equal to 51 weeks, 6 days, 8 hours, 26 minutes, 49 seconds.
• To count from 1 to 31,393,609 would take you about twenty-five weeks!

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 31393609 cubic inches would be around 26.3 feet tall.

### Recreational maths with 31393609

• 31393609 backwards is 90639313
• The number of decimal digits it has is: 8
• The sum of 31393609's digits is 34
• More coming soon!