# 789

## 789 is an odd composite number composed of two prime numbers multiplied together.

What does the number 789 look like?

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

789 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 789:

### 3 × 263

See below for interesting mathematical facts about the number 789 from the Numbermatics database.

### Names of 789

• Cardinal: 789 can be written as Seven hundred eighty-nine.

### Scientific notation

• Scientific notation: 7.89 × 102

### Factors of 789

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 266

### Divisors of 789

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 1056
• Sum of proper divisors (its aliquot sum) s(n): 267
• 789 is a deficient number, because the sum of its proper divisors (267) is less than itself. Its deficiency is 522

### Bases of 789

• Binary: 11000101012
• Base-36: LX

### Squares and roots of 789

• 789 squared (7892) is 622521
• 789 cubed (7893) is 491169069
• The square root of 789 is 28.0891438103
• The cube root of 789 is 9.2404332549

### Scales and comparisons

How big is 789?
• 789 seconds is equal to 13 minutes, 9 seconds.
• To count from 1 to 789 would take you about 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 789 cubic inches would be around 0.8 feet tall.

### Recreational maths with 789

• 789 backwards is 987
• The number of decimal digits it has is: 3
• The sum of 789's digits is 24
• More coming soon!

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Chicago style:
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The information we have on file for 789 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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