# 6647

## 6,647 is an odd composite number composed of two prime numbers multiplied together.

What does the number 6647 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

6647 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

## Prime factorization of 6647:

### 172 × 23

(17 × 17 × 23)

See below for interesting mathematical facts about the number 6647 from the Numbermatics database.

### Names of 6647

• Cardinal: 6647 can be written as Six thousand, six hundred forty-seven.

### Scientific notation

• Scientific notation: 6.647 × 103

### Factors of 6647

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 40

### Divisors of 6647

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 7368
• Sum of proper divisors (its aliquot sum) s(n): 721
• 6647 is a deficient number, because the sum of its proper divisors (721) is less than itself. Its deficiency is 5926

### Bases of 6647

• Binary: 11001111101112
• Base-36: 54N

### Squares and roots of 6647

• 6647 squared (66472) is 44182609
• 6647 cubed (66473) is 293681802023
• The square root of 6647 is 81.5291358963
• The cube root of 6647 is 18.8021953073

### Scales and comparisons

How big is 6647?
• 6,647 seconds is equal to 1 hour, 50 minutes, 47 seconds.
• To count from 1 to 6,647 would take you about fifty minutes.

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 6647 cubic inches would be around 1.6 feet tall.

### Recreational maths with 6647

• 6647 backwards is 7466
• 6647 is a Harshad number.
• The number of decimal digits it has is: 4
• The sum of 6647's digits is 23
• More coming soon!