# 3987

## 3,987 is an odd composite number composed of two prime numbers multiplied together.

What does the number 3987 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

3987 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

## Prime factorization of 3987:

### 32 × 443

(3 × 3 × 443)

See below for interesting mathematical facts about the number 3987 from the Numbermatics database.

### Names of 3987

• Cardinal: 3987 can be written as Three thousand, nine hundred eighty-seven.

### Scientific notation

• Scientific notation: 3.987 × 103

### Factors of 3987

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 446

### Divisors of 3987

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 5772
• Sum of proper divisors (its aliquot sum) s(n): 1785
• 3987 is a deficient number, because the sum of its proper divisors (1785) is less than itself. Its deficiency is 2202

### Bases of 3987

• Binary: 1111100100112
• Base-36: 32R

### Squares and roots of 3987

• 3987 squared (39872) is 15896169
• 3987 cubed (39873) is 63378025803
• The square root of 3987 is 63.1426955395
• The cube root of 3987 is 15.8567950113

### Scales and comparisons

How big is 3987?
• 3,987 seconds is equal to 1 hour, 6 minutes, 27 seconds.
• To count from 1 to 3,987 would take you about six 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 3987 cubic inches would be around 1.3 feet tall.

### Recreational maths with 3987

• 3987 backwards is 7893
• The number of decimal digits it has is: 4
• The sum of 3987's digits is 27
• More coming soon!

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The information we have on file for 3987 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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