# 642168

## 642,168 is an even composite number composed of three prime numbers multiplied together.

What does the number 642168 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 40 divisors.

642168 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of forty divisors.

## Prime factorization of 642168:

### 23 × 34 × 991

(2 × 2 × 2 × 3 × 3 × 3 × 3 × 991)

See below for interesting mathematical facts about the number 642168 from the Numbermatics database.

### Names of 642168

• Cardinal: 642168 can be written as Six hundred forty-two thousand, one hundred sixty-eight.

### Scientific notation

• Scientific notation: 6.42168 × 105

### Factors of 642168

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 996

### Divisors of 642168

• Number of divisors d(n): 40
• Complete list of divisors:
• Sum of all divisors σ(n): 1800480
• Sum of proper divisors (its aliquot sum) s(n): 1158312
• 642168 is an abundant number, because the sum of its proper divisors (1158312) is greater than itself. Its abundance is 516144

### Bases of 642168

• Binary: 100111001100011110002
• Base-36: DRI0

### Squares and roots of 642168

• 642168 squared (6421682) is 412379740224
• 642168 cubed (6421683) is 264817073020165632
• The square root of 642168 is 801.3538544239
• The cube root of 642168 is 86.2745865635

### Scales and comparisons

How big is 642168?
• 642,168 seconds is equal to 1 week, 10 hours, 22 minutes, 48 seconds.
• To count from 1 to 642,168 would take you about ten 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 642168 cubic inches would be around 7.2 feet tall.

### Recreational maths with 642168

• 642168 backwards is 861246
• 642168 is a Harshad number.
• The number of decimal digits it has is: 6
• The sum of 642168's digits is 27
• More coming soon!

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The information we have on file for 642168 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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