# 12387

## 12,387 is an odd composite number composed of two prime numbers multiplied together.

What does the number 12387 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

12387 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

## Prime factorization of 12387:

### 3 × 4129

See below for interesting mathematical facts about the number 12387 from the Numbermatics database.

### Names of 12387

• Cardinal: 12387 can be written as Twelve thousand, three hundred eighty-seven.

### Scientific notation

• Scientific notation: 1.2387 × 104

### Factors of 12387

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 4132

### Divisors of 12387

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 16520
• Sum of proper divisors (its aliquot sum) s(n): 4133
• 12387 is a deficient number, because the sum of its proper divisors (4133) is less than itself. Its deficiency is 8254

### Bases of 12387

• Binary: 110000011000112
• Base-36: 9K3

### Squares and roots of 12387

• 12387 squared (123872) is 153437769
• 12387 cubed (123873) is 1900633644603
• The square root of 12387 is 111.2969002263
• The cube root of 12387 is 23.1377990993

### Scales and comparisons

How big is 12387?
• 12,387 seconds is equal to 3 hours, 26 minutes, 27 seconds.
• To count from 1 to 12,387 would take you about three 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 12387 cubic inches would be around 1.9 feet tall.

### Recreational maths with 12387

• 12387 backwards is 78321
• The number of decimal digits it has is: 5
• The sum of 12387's digits is 21
• More coming soon!