# 775

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

What does the number 775 look like?

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

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

## Prime factorization of 775:

### 52 × 31

(5 × 5 × 31)

See below for interesting mathematical facts about the number 775 from the Numbermatics database.

### Names of 775

• Cardinal: 775 can be written as Seven hundred seventy-five.

### Scientific notation

• Scientific notation: 7.75 × 102

### Factors of 775

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 36

### Divisors of 775

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 992
• Sum of proper divisors (its aliquot sum) s(n): 217
• 775 is a deficient number, because the sum of its proper divisors (217) is less than itself. Its deficiency is 558

### Bases of 775

• Binary: 11000001112
• Base-36: LJ

### Squares and roots of 775

• 775 squared (7752) is 600625
• 775 cubed (7753) is 465484375
• The square root of 775 is 27.8388218141
• The cube root of 775 is 9.1854527501

### Scales and comparisons

How big is 775?
• 775 seconds is equal to 12 minutes, 55 seconds.
• To count from 1 to 775 would take you about six 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 775 cubic inches would be around 0.8 feet tall.

### Recreational maths with 775

• 775 backwards is 577
• The number of decimal digits it has is: 3
• The sum of 775's digits is 19
• More coming soon!