# 1265

## 1,265 is an odd composite number composed of three prime numbers multiplied together.

What does the number 1265 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

1265 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

## Prime factorization of 1265:

### 5 × 11 × 23

See below for interesting mathematical facts about the number 1265 from the Numbermatics database.

### Names of 1265

• Cardinal: 1265 can be written as One thousand, two hundred sixty-five.

### Scientific notation

• Scientific notation: 1.265 × 103

### Factors of 1265

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 39

### Divisors of 1265

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 1728
• Sum of proper divisors (its aliquot sum) s(n): 463
• 1265 is a deficient number, because the sum of its proper divisors (463) is less than itself. Its deficiency is 802

### Bases of 1265

• Binary: 100111100012
• Base-36: Z5

### Squares and roots of 1265

• 1265 squared (12652) is 1600225
• 1265 cubed (12653) is 2024284625
• The square root of 1265 is 35.5668384875
• The cube root of 1265 is 10.8150909291

### Scales and comparisons

How big is 1265?
• 1,265 seconds is equal to 21 minutes, 5 seconds.
• To count from 1 to 1,265 would take you about twenty-one 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 1265 cubic inches would be around 0.9 feet tall.

### Recreational maths with 1265

• 1265 backwards is 5621
• The number of decimal digits it has is: 4
• The sum of 1265's digits is 14
• More coming soon!