# 20143

## 20,143 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 20143 look like?

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

20143 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 20143:

### 20143

See below for interesting mathematical facts about the number 20143 from the Numbermatics database.

### Names of 20143

• Cardinal: 20143 can be written as Twenty thousand, one hundred forty-three.

### Scientific notation

• Scientific notation: 2.0143 × 104

### Factors of 20143

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 20143

### Divisors of 20143

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 20144
• Sum of proper divisors (its aliquot sum) s(n): 1
• 20143 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 20142

### Bases of 20143

• Binary: 1001110101011112
• Base-36: FJJ

### Squares and roots of 20143

• 20143 squared (201432) is 405740449
• 20143 cubed (201433) is 8172829864207
• The square root of 20143 is 141.9260370757
• The cube root of 20143 is 27.2087162089

### Scales and comparisons

How big is 20143?
• 20,143 seconds is equal to 5 hours, 35 minutes, 43 seconds.
• To count from 1 to 20,143 would take you about five 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 20143 cubic inches would be around 2.3 feet tall.

### Recreational maths with 20143

• 20143 backwards is 34102
• The number of decimal digits it has is: 5
• The sum of 20143's digits is 10
• More coming soon!