# 16420

## 16,420 is an even composite number composed of three prime numbers multiplied together.

What does the number 16420 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

16420 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

## Prime factorization of 16420:

### 22 × 5 × 821

(2 × 2 × 5 × 821)

See below for interesting mathematical facts about the number 16420 from the Numbermatics database.

### Names of 16420

• Cardinal: 16420 can be written as Sixteen thousand, four hundred twenty.

### Scientific notation

• Scientific notation: 1.642 × 104

### Factors of 16420

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 828

### Divisors of 16420

• Number of divisors d(n): 12
• Complete list of divisors:
• Sum of all divisors σ(n): 34524
• Sum of proper divisors (its aliquot sum) s(n): 18104
• 16420 is an abundant number, because the sum of its proper divisors (18104) is greater than itself. Its abundance is 1684

### Bases of 16420

• Binary: 1000000001001002
• Base-36: CO4

### Squares and roots of 16420

• 16420 squared (164202) is 269616400
• 16420 cubed (164203) is 4427101288000
• The square root of 16420 is 128.1405478371
• The cube root of 16420 is 25.4170055795

### Scales and comparisons

How big is 16420?
• 16,420 seconds is equal to 4 hours, 33 minutes, 40 seconds.
• To count from 1 to 16,420 would take you about four 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 16420 cubic inches would be around 2.1 feet tall.

### Recreational maths with 16420

• 16420 backwards is 02461
• The number of decimal digits it has is: 5
• The sum of 16420's digits is 13
• More coming soon!