# 3870

## 3,870 is an even composite number composed of four prime numbers multiplied together.

What does the number 3870 look like?

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

3870 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 3870:

### 2 × 32 × 5 × 43

(2 × 3 × 3 × 5 × 43)

See below for interesting mathematical facts about the number 3870 from the Numbermatics database.

### Names of 3870

• Cardinal: 3870 can be written as Three thousand, eight hundred seventy.

### Scientific notation

• Scientific notation: 3.87 × 103

### Factors of 3870

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 53

### Divisors of 3870

• Number of divisors d(n): 24
• Complete list of divisors:
• Sum of all divisors σ(n): 10296
• Sum of proper divisors (its aliquot sum) s(n): 6426
• 3870 is an abundant number, because the sum of its proper divisors (6426) is greater than itself. Its abundance is 2556

### Bases of 3870

• Binary: 1111000111102
• Base-36: 2ZI

### Squares and roots of 3870

• 3870 squared (38702) is 14976900
• 3870 cubed (38703) is 57960603000
• The square root of 3870 is 62.2093240599
• The cube root of 3870 is 15.7001446967

### Scales and comparisons

How big is 3870?
• 3,870 seconds is equal to 1 hour, 4 minutes, 30 seconds.
• To count from 1 to 3,870 would take you about four 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 3870 cubic inches would be around 1.3 feet tall.

### Recreational maths with 3870

• 3870 backwards is 0783
• 3870 is a Harshad number.
• The number of decimal digits it has is: 4
• The sum of 3870's digits is 18
• More coming soon!