# 1143

## 1,143 is an odd composite number composed of two prime numbers multiplied together.

What does the number 1143 look like?

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

1143 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 1143:

### 32 × 127

(3 × 3 × 127)

See below for interesting mathematical facts about the number 1143 from the Numbermatics database.

### Names of 1143

• Cardinal: 1143 can be written as One thousand, one hundred forty-three.

### Scientific notation

• Scientific notation: 1.143 × 103

### Factors of 1143

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 130

### Divisors of 1143

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 1664
• Sum of proper divisors (its aliquot sum) s(n): 521
• 1143 is a deficient number, because the sum of its proper divisors (521) is less than itself. Its deficiency is 622

### Bases of 1143

• Binary: 100011101112
• Base-36: VR

### Squares and roots of 1143

• 1143 squared (11432) is 1306449
• 1143 cubed (11433) is 1493271207
• The square root of 1143 is 33.8082830087
• The cube root of 1143 is 10.4555947849

### Scales and comparisons

How big is 1143?
• 1,143 seconds is equal to 19 minutes, 3 seconds.
• To count from 1 to 1,143 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 1143 cubic inches would be around 0.9 feet tall.

### Recreational maths with 1143

• 1143 backwards is 3411
• 1143 is a Harshad number.
• The number of decimal digits it has is: 4
• The sum of 1143's digits is 9
• More coming soon!