# 2789

## 2,789 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 2789 look like?

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

2789 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 2789:

### 2789

See below for interesting mathematical facts about the number 2789 from the Numbermatics database.

### Names of 2789

• Cardinal: 2789 can be written as Two thousand, seven hundred eighty-nine.

### Scientific notation

• Scientific notation: 2.789 × 103

### Factors of 2789

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 2789

### Divisors of 2789

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 2790
• Sum of proper divisors (its aliquot sum) s(n): 1
• 2789 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 2788

### Bases of 2789

• Binary: 1010111001012
• Base-36: 25H

### Squares and roots of 2789

• 2789 squared (27892) is 7778521
• 2789 cubed (27893) is 21694295069
• The square root of 2789 is 52.8109837061
• The cube root of 2789 is 14.0761160301

### Scales and comparisons

How big is 2789?
• 2,789 seconds is equal to 46 minutes, 29 seconds.
• To count from 1 to 2,789 would take you about forty-six 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 2789 cubic inches would be around 1.2 feet tall.

### Recreational maths with 2789

• 2789 backwards is 9872
• 2789 is a twin prime! Its twin is 2791
• The number of decimal digits it has is: 4
• The sum of 2789's digits is 26
• More coming soon!