# 1156

## 1,156 is an even composite number composed of two prime numbers multiplied together.

What does the number 1156 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 9 divisors.

1156 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of nine divisors.

## Prime factorization of 1156:

### 22 × 172

(2 × 2 × 17 × 17)

See below for interesting mathematical facts about the number 1156 from the Numbermatics database.

### Names of 1156

• Cardinal: 1156 can be written as One thousand, one hundred fifty-six.

### Scientific notation

• Scientific notation: 1.156 × 103

### Factors of 1156

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 19

### Divisors of 1156

• Number of divisors d(n): 9
• Complete list of divisors:
• Sum of all divisors σ(n): 2149
• Sum of proper divisors (its aliquot sum) s(n): 993
• 1156 is a deficient number, because the sum of its proper divisors (993) is less than itself. Its deficiency is 163

### Bases of 1156

• Binary: 100100001002
• Base-36: W4

### Squares and roots of 1156

• 1156 squared (11562) is 1336336
• 1156 cubed (11563) is 1544804416
• 1156 is a perfect square number. Its square root is 34
• The cube root of 1156 is 10.4950846229

### Scales and comparisons

How big is 1156?
• 1,156 seconds is equal to 19 minutes, 16 seconds.
• To count from 1 to 1,156 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 1156 cubic inches would be around 0.9 feet tall.

### Recreational maths with 1156

• 1156 backwards is 6511
• The number of decimal digits it has is: 4
• The sum of 1156's digits is 13
• More coming soon!