# 2643

## 2,643 is an odd composite number composed of two prime numbers multiplied together.

What does the number 2643 look like?

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

2643 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 2643:

### 3 × 881

See below for interesting mathematical facts about the number 2643 from the Numbermatics database.

### Names of 2643

• Cardinal: 2643 can be written as Two thousand, six hundred forty-three.

### Scientific notation

• Scientific notation: 2.643 × 103

### Factors of 2643

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 884

### Divisors of 2643

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 3528
• Sum of proper divisors (its aliquot sum) s(n): 885
• 2643 is a deficient number, because the sum of its proper divisors (885) is less than itself. Its deficiency is 1758

### Bases of 2643

• Binary: 1010010100112
• Base-36: 21F

### Squares and roots of 2643

• 2643 squared (26432) is 6985449
• 2643 cubed (26433) is 18462541707
• The square root of 2643 is 51.4101157361
• The cube root of 2643 is 13.8260796473

### Scales and comparisons

How big is 2643?
• 2,643 seconds is equal to 44 minutes, 3 seconds.
• To count from 1 to 2,643 would take you about forty-four 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 2643 cubic inches would be around 1.2 feet tall.

### Recreational maths with 2643

• 2643 backwards is 3462
• The number of decimal digits it has is: 4
• The sum of 2643's digits is 15
• More coming soon!

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The information we have on file for 2643 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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