# 11191

## 11,191 is an odd composite number composed of two prime numbers multiplied together.

What does the number 11191 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

11191 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

## Prime factorization of 11191:

### 192 × 31

(19 × 19 × 31)

See below for interesting mathematical facts about the number 11191 from the Numbermatics database.

### Names of 11191

• Cardinal: 11191 can be written as Eleven thousand, one hundred ninety-one.

### Scientific notation

• Scientific notation: 1.1191 × 104

### Factors of 11191

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 50

### Divisors of 11191

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 12192
• Sum of proper divisors (its aliquot sum) s(n): 1001
• 11191 is a deficient number, because the sum of its proper divisors (1001) is less than itself. Its deficiency is 10190

### Bases of 11191

• Binary: 101011101101112
• Base-36: 8MV

### Squares and roots of 11191

• 11191 squared (111912) is 125238481
• 11191 cubed (111913) is 1401543840871
• The square root of 11191 is 105.7875228937
• The cube root of 11191 is 22.3677842591

### Scales and comparisons

How big is 11191?
• 11,191 seconds is equal to 3 hours, 6 minutes, 31 seconds.
• To count from 1 to 11,191 would take you about three hours.

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 11191 cubic inches would be around 1.9 feet tall.

### Recreational maths with 11191

• 11191 backwards is 19111
• The number of decimal digits it has is: 5
• The sum of 11191's digits is 13
• More coming soon!