# 1181

## 1,181 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 1181 look like?

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

1181 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 1181:

### 1181

See below for interesting mathematical facts about the number 1181 from the Numbermatics database.

### Names of 1181

• Cardinal: 1181 can be written as One thousand, one hundred eighty-one.

### Scientific notation

• Scientific notation: 1.181 × 103

### Factors of 1181

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 1181

### Divisors of 1181

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 1182
• Sum of proper divisors (its aliquot sum) s(n): 1
• 1181 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 1180

### Bases of 1181

• Binary: 100100111012
• Base-36: WT

### Squares and roots of 1181

• 1181 squared (11812) is 1394761
• 1181 cubed (11813) is 1647212741
• The square root of 1181 is 34.3656805547
• The cube root of 1181 is 10.5702022995

### Scales and comparisons

How big is 1181?
• 1,181 seconds is equal to 19 minutes, 41 seconds.
• To count from 1 to 1,181 would take you about nineteen 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 1181 cubic inches would be around 0.9 feet tall.

### Recreational maths with 1181

• 1181 backwards is 1811
• The number of decimal digits it has is: 4
• The sum of 1181's digits is 11
• More coming soon!