# 68

## 68 is an even composite number composed of two prime numbers multiplied together.

What does the number 68 look like?

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

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

## Prime factorization of 68:

### 22 × 17

(2 × 2 × 17)

See below for interesting mathematical facts about the number 68 from the Numbermatics database.

### Names of 68

• Cardinal: 68 can be written as Sixty-eight.

### Scientific notation

• Scientific notation: 6.8 × 101

### Factors of 68

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 19

### Divisors of 68

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 126
• Sum of proper divisors (its aliquot sum) s(n): 58
• 68 is a deficient number, because the sum of its proper divisors (58) is less than itself. Its deficiency is 10

### Bases of 68

• Binary: 10001002
• Base-36: 1W

### Squares and roots of 68

• 68 squared (682) is 4624
• 68 cubed (683) is 314432
• The square root of 68 is 8.2462112513
• The cube root of 68 is 4.0816551019

### Scales and comparisons

How big is 68?
• 68 seconds is equal to 1 minute, 8 seconds.
• To count from 1 to 68 would take you about thirty-four seconds.

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 68 cubic inches would be around 0.3 feet tall.

### Recreational maths with 68

• 68 backwards is 86
• The number of decimal digits it has is: 2
• The sum of 68's digits is 14
• More coming soon!

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"Number 68 - Facts about the integer". Numbermatics.com. 2021. Web. 9 December 2021.

APA style:
Numbermatics. (2021). Number 68 - Facts about the integer. Retrieved 9 December 2021, from https://numbermatics.com/n/68/

Chicago style:
Numbermatics. 2021. "Number 68 - Facts about the integer". https://numbermatics.com/n/68/

The information we have on file for 68 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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