# 679

## 679 is an odd composite number composed of two prime numbers multiplied together.

What does the number 679 look like?

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

679 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 679:

### 7 × 97

See below for interesting mathematical facts about the number 679 from the Numbermatics database.

### Names of 679

• Cardinal: 679 can be written as Six hundred seventy-nine.

### Scientific notation

• Scientific notation: 6.79 × 102

### Factors of 679

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 104

### Divisors of 679

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 784
• Sum of proper divisors (its aliquot sum) s(n): 105
• 679 is a deficient number, because the sum of its proper divisors (105) is less than itself. Its deficiency is 574

### Bases of 679

• Binary: 10101001112
• Base-36: IV

### Squares and roots of 679

• 679 squared (6792) is 461041
• 679 cubed (6793) is 313046839
• The square root of 679 is 26.0576284415
• The cube root of 679 is 8.7893466123

### Scales and comparisons

How big is 679?
• 679 seconds is equal to 11 minutes, 19 seconds.
• To count from 1 to 679 would take you about five 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 679 cubic inches would be around 0.7 feet tall.

### Recreational maths with 679

• 679 backwards is 976
• The number of decimal digits it has is: 3
• The sum of 679's digits is 22
• More coming soon!