# 20455

## 20,455 is an odd composite number composed of two prime numbers multiplied together.

What does the number 20455 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

20455 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

## Prime factorization of 20455:

### 5 × 4091

See below for interesting mathematical facts about the number 20455 from the Numbermatics database.

### Names of 20455

• Cardinal: 20455 can be written as Twenty thousand, four hundred fifty-five.

### Scientific notation

• Scientific notation: 2.0455 × 104

### Factors of 20455

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 4096

### Divisors of 20455

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 24552
• Sum of proper divisors (its aliquot sum) s(n): 4097
• 20455 is a deficient number, because the sum of its proper divisors (4097) is less than itself. Its deficiency is 16358

### Bases of 20455

• Binary: 1001111111001112
• Base-36: FS7

### Squares and roots of 20455

• 20455 squared (204552) is 418407025
• 20455 cubed (204553) is 8558515696375
• The square root of 20455 is 143.0209774823
• The cube root of 20455 is 27.3484779579

### Scales and comparisons

How big is 20455?
• 20,455 seconds is equal to 5 hours, 40 minutes, 55 seconds.
• To count from 1 to 20,455 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 20455 cubic inches would be around 2.3 feet tall.

### Recreational maths with 20455

• 20455 backwards is 55402
• The number of decimal digits it has is: 5
• The sum of 20455's digits is 16
• More coming soon!

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The information we have on file for 20455 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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