# 3820

## 3,820 is an even composite number composed of three prime numbers multiplied together.

What does the number 3820 look like?

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

3820 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 3820:

### 22 × 5 × 191

(2 × 2 × 5 × 191)

See below for interesting mathematical facts about the number 3820 from the Numbermatics database.

### Names of 3820

• Cardinal: 3820 can be written as Three thousand, eight hundred twenty.

### Scientific notation

• Scientific notation: 3.82 × 103

### Factors of 3820

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 198

### Divisors of 3820

• Number of divisors d(n): 12
• Complete list of divisors:
• Sum of all divisors σ(n): 8064
• Sum of proper divisors (its aliquot sum) s(n): 4244
• 3820 is an abundant number, because the sum of its proper divisors (4244) is greater than itself. Its abundance is 424

### Bases of 3820

• Binary: 1110111011002
• Base-36: 2Y4

### Squares and roots of 3820

• 3820 squared (38202) is 14592400
• 3820 cubed (38203) is 55742968000
• The square root of 3820 is 61.8061485615
• The cube root of 3820 is 15.6322366479

### Scales and comparisons

How big is 3820?
• 3,820 seconds is equal to 1 hour, 3 minutes, 40 seconds.
• To count from 1 to 3,820 would take you about three minutes.

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 3820 cubic inches would be around 1.3 feet tall.

### Recreational maths with 3820

• 3820 backwards is 0283
• The number of decimal digits it has is: 4
• The sum of 3820's digits is 13
• More coming soon!