# 1161

## 1,161 is an odd composite number composed of two prime numbers multiplied together.

What does the number 1161 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 8 divisors.

1161 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of eight divisors.

## Prime factorization of 1161:

### 33 × 43

(3 × 3 × 3 × 43)

See below for interesting mathematical facts about the number 1161 from the Numbermatics database.

### Names of 1161

• Cardinal: 1161 can be written as One thousand, one hundred sixty-one.

### Scientific notation

• Scientific notation: 1.161 × 103

### Factors of 1161

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 46

### Divisors of 1161

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 1760
• Sum of proper divisors (its aliquot sum) s(n): 599
• 1161 is a deficient number, because the sum of its proper divisors (599) is less than itself. Its deficiency is 562

### Bases of 1161

• Binary: 100100010012
• Base-36: W9

### Squares and roots of 1161

• 1161 squared (11612) is 1347921
• 1161 cubed (11613) is 1564936281
• The square root of 1161 is 34.0734500749
• The cube root of 1161 is 10.5101941811

### Scales and comparisons

How big is 1161?
• 1,161 seconds is equal to 19 minutes, 21 seconds.
• To count from 1 to 1,161 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 1161 cubic inches would be around 0.9 feet tall.

### Recreational maths with 1161

• 1161 backwards is 1611
• 1161 is a Harshad number.
• The number of decimal digits it has is: 4
• The sum of 1161's digits is 9
• More coming soon!

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The information we have on file for 1161 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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