# 387420489

## 387,420,489 is an odd composite number. It is composed of a single prime number multiplied by itself seventeen times.

What does the number 387420489 look like?

This visualization shows the relationship between its 1 prime factors (large circles) and 19 divisors.

387420489 is an odd composite number. It is composed of one distinct prime number multiplied by itself seventeen times. It has a total of nineteen divisors.

## Prime factorization of 387420489:

### 318

(3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3)

See below for interesting mathematical facts about the number 387420489 from the Numbermatics database.

### Names of 387420489

• Cardinal: 387420489 can be written as Three hundred eighty-seven million, four hundred twenty thousand, four hundred eighty-nine.

### Scientific notation

• Scientific notation: 3.87420489 × 108

### Factors of 387420489

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 3

### Divisors of 387420489

• Number of divisors d(n): 19
• Complete list of divisors:
• Sum of all divisors σ(n): 581130733
• Sum of proper divisors (its aliquot sum) s(n): 193710244
• 387420489 is a deficient number, because the sum of its proper divisors (193710244) is less than itself. Its deficiency is 193710245

### Bases of 387420489

• Binary: 101110001011110010001010010012
• Base-36: 6ENRK9

### Squares and roots of 387420489

• 387420489 squared (3874204892) is 150094635296999121
• 387420489 cubed (3874204893) is 58149737003040059690390169
• 387420489 is a perfect square number. Its square root is 19683
• 387420489 is a perfect cube number. Its cube root is 729

### Scales and comparisons

How big is 387420489?
• 387,420,489 seconds is equal to 12 years, 16 weeks, 4 days, 48 minutes, 9 seconds.
• To count from 1 to 387,420,489 would take you about eighteen years!

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 387420489 cubic inches would be around 60.8 feet tall.

### Recreational maths with 387420489

• 387420489 backwards is 984024783
• The number of decimal digits it has is: 9
• The sum of 387420489's digits is 45
• More coming soon!