# 16428

## 16,428 is an even composite number composed of three prime numbers multiplied together.

What does the number 16428 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 18 divisors.

16428 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eighteen divisors.

## Prime factorization of 16428:

### 22 × 3 × 372

(2 × 2 × 3 × 37 × 37)

See below for interesting mathematical facts about the number 16428 from the Numbermatics database.

### Names of 16428

• Cardinal: 16428 can be written as Sixteen thousand, four hundred twenty-eight.

### Scientific notation

• Scientific notation: 1.6428 × 104

### Factors of 16428

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 42

### Divisors of 16428

• Number of divisors d(n): 18
• Complete list of divisors:
• Sum of all divisors σ(n): 39396
• Sum of proper divisors (its aliquot sum) s(n): 22968
• 16428 is an abundant number, because the sum of its proper divisors (22968) is greater than itself. Its abundance is 6540

### Bases of 16428

• Binary: 1000000001011002
• Base-36: COC

### Squares and roots of 16428

• 16428 squared (164282) is 269879184
• 16428 cubed (164283) is 4433575234752
• The square root of 16428 is 128.1717597599
• The cube root of 16428 is 25.4211327217

### Scales and comparisons

How big is 16428?
• 16,428 seconds is equal to 4 hours, 33 minutes, 48 seconds.
• To count from 1 to 16,428 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 16428 cubic inches would be around 2.1 feet tall.

### Recreational maths with 16428

• 16428 backwards is 82461
• The number of decimal digits it has is: 5
• The sum of 16428's digits is 21
• More coming soon!