# 6891

## 6,891 is an odd composite number composed of two prime numbers multiplied together.

What does the number 6891 look like?

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

6891 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 6891:

### 3 × 2297

See below for interesting mathematical facts about the number 6891 from the Numbermatics database.

### Names of 6891

• Cardinal: 6891 can be written as Six thousand, eight hundred ninety-one.

### Scientific notation

• Scientific notation: 6.891 × 103

### Factors of 6891

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 2300

### Divisors of 6891

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 9192
• Sum of proper divisors (its aliquot sum) s(n): 2301
• 6891 is a deficient number, because the sum of its proper divisors (2301) is less than itself. Its deficiency is 4590

### Bases of 6891

• Binary: 11010111010112
• Base-36: 5BF

### Squares and roots of 6891

• 6891 squared (68912) is 47485881
• 6891 cubed (68913) is 327225205971
• The square root of 6891 is 83.0120473185
• The cube root of 6891 is 19.0295017215

### Scales and comparisons

How big is 6891?
• 6,891 seconds is equal to 1 hour, 54 minutes, 51 seconds.
• To count from 1 to 6,891 would take you about fifty-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 6891 cubic inches would be around 1.6 feet tall.

### Recreational maths with 6891

• 6891 backwards is 1986
• The number of decimal digits it has is: 4
• The sum of 6891's digits is 24
• More coming soon!