# 4891

## 4,891 is an odd composite number composed of two prime numbers multiplied together.

What does the number 4891 look like?

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

4891 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 4891:

### 67 × 73

See below for interesting mathematical facts about the number 4891 from the Numbermatics database.

### Names of 4891

• Cardinal: 4891 can be written as Four thousand, eight hundred ninety-one.

### Scientific notation

• Scientific notation: 4.891 × 103

### Factors of 4891

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 140

### Divisors of 4891

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 5032
• Sum of proper divisors (its aliquot sum) s(n): 141
• 4891 is a deficient number, because the sum of its proper divisors (141) is less than itself. Its deficiency is 4750

### Bases of 4891

• Binary: 10011000110112
• Base-36: 3RV

### Squares and roots of 4891

• 4891 squared (48912) is 23921881
• 4891 cubed (48913) is 117001919971
• The square root of 4891 is 69.9356847397
• The cube root of 4891 is 16.9745871743

### Scales and comparisons

How big is 4891?
• 4,891 seconds is equal to 1 hour, 21 minutes, 31 seconds.
• To count from 1 to 4,891 would take you about twenty-one 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 4891 cubic inches would be around 1.4 feet tall.

### Recreational maths with 4891

• 4891 backwards is 1984
• The number of decimal digits it has is: 4
• The sum of 4891's digits is 22
• More coming soon!