# 7420

## 7,420 is an even composite number composed of four prime numbers multiplied together.

What does the number 7420 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

7420 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

## Prime factorization of 7420:

### 22 × 5 × 7 × 53

(2 × 2 × 5 × 7 × 53)

See below for interesting mathematical facts about the number 7420 from the Numbermatics database.

### Names of 7420

• Cardinal: 7420 can be written as Seven thousand, four hundred twenty.

### Scientific notation

• Scientific notation: 7.42 × 103

### Factors of 7420

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 67

### Divisors of 7420

• Number of divisors d(n): 24
• Complete list of divisors:
• Sum of all divisors σ(n): 18144
• Sum of proper divisors (its aliquot sum) s(n): 10724
• 7420 is an abundant number, because the sum of its proper divisors (10724) is greater than itself. Its abundance is 3304

### Bases of 7420

• Binary: 11100111111002
• Base-36: 5Q4

### Squares and roots of 7420

• 7420 squared (74202) is 55056400
• 7420 cubed (74203) is 408518488000
• The square root of 7420 is 86.1394218695
• The cube root of 7420 is 19.5044916237

### Scales and comparisons

How big is 7420?
• 7,420 seconds is equal to 2 hours, 3 minutes, 40 seconds.
• To count from 1 to 7,420 would take you about two 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 7420 cubic inches would be around 1.6 feet tall.

### Recreational maths with 7420

• 7420 backwards is 0247
• The number of decimal digits it has is: 4
• The sum of 7420's digits is 13
• More coming soon!