# 20261

## 20,261 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 20261 look like?

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

20261 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 20261:

### 20261

See below for interesting mathematical facts about the number 20261 from the Numbermatics database.

### Names of 20261

• Cardinal: 20261 can be written as Twenty thousand, two hundred sixty-one.

### Scientific notation

• Scientific notation: 2.0261 × 104

### Factors of 20261

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 20261

### Divisors of 20261

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 20262
• Sum of proper divisors (its aliquot sum) s(n): 1
• 20261 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 20260

### Bases of 20261

• Binary: 1001111001001012
• Base-36: FMT

### Squares and roots of 20261

• 20261 squared (202612) is 410508121
• 20261 cubed (202613) is 8317305039581
• The square root of 20261 is 142.3411395205
• The cube root of 20261 is 27.2617433883

### Scales and comparisons

How big is 20261?
• 20,261 seconds is equal to 5 hours, 37 minutes, 41 seconds.
• To count from 1 to 20,261 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 20261 cubic inches would be around 2.3 feet tall.

### Recreational maths with 20261

• 20261 backwards is 16202
• The number of decimal digits it has is: 5
• The sum of 20261's digits is 11
• More coming soon!