# 6643

## 6,643 is an odd composite number composed of three prime numbers multiplied together.

What does the number 6643 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

6643 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

## Prime factorization of 6643:

### 7 × 13 × 73

See below for interesting mathematical facts about the number 6643 from the Numbermatics database.

### Names of 6643

• Cardinal: 6643 can be written as Six thousand, six hundred forty-three.

### Scientific notation

• Scientific notation: 6.643 × 103

### Factors of 6643

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 93

### Divisors of 6643

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 8288
• Sum of proper divisors (its aliquot sum) s(n): 1645
• 6643 is a deficient number, because the sum of its proper divisors (1645) is less than itself. Its deficiency is 4998

### Bases of 6643

• Binary: 11001111100112
• Hexadecimal: 0x19F3
• Base-36: 54J

### Squares and roots of 6643

• 6643 squared (66432) is 44129449
• 6643 cubed (66433) is 293151929707
• The square root of 6643 is 81.5046010971
• The cube root of 6643 is 18.7984229853

### Scales and comparisons

How big is 6643?
• 6,643 seconds is equal to 1 hour, 50 minutes, 43 seconds.
• To count from 1 to 6,643 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 6643 cubic inches would be around 1.6 feet tall.

### Recreational maths with 6643

• 6643 backwards is 3466
• The number of decimal digits it has is: 4
• The sum of 6643's digits is 19
• More coming soon!

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The information we have on file for 6643 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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