# 20479

## 20,479 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 20479 look like?

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

20479 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 20479:

### 20479

See below for interesting mathematical facts about the number 20479 from the Numbermatics database.

### Names of 20479

• Cardinal: 20479 can be written as Twenty thousand, four hundred seventy-nine.

### Scientific notation

• Scientific notation: 2.0479 × 104

### Factors of 20479

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 20479

### Divisors of 20479

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 20480
• Sum of proper divisors (its aliquot sum) s(n): 1
• 20479 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 20478

### Bases of 20479

• Binary: 1001111111111112
• Base-36: FSV

### Squares and roots of 20479

• 20479 squared (204792) is 419389441
• 20479 cubed (204793) is 8588676362239
• The square root of 20479 is 143.1048566611
• The cube root of 20479 is 27.3591698331

### Scales and comparisons

How big is 20479?
• 20,479 seconds is equal to 5 hours, 41 minutes, 19 seconds.
• To count from 1 to 20,479 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 20479 cubic inches would be around 2.3 feet tall.

### Recreational maths with 20479

• 20479 backwards is 97402
• The number of decimal digits it has is: 5
• The sum of 20479's digits is 22
• More coming soon!