# 1247

## 1,247 is an odd composite number composed of two prime numbers multiplied together.

What does the number 1247 look like?

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

1247 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 1247:

### 29 × 43

See below for interesting mathematical facts about the number 1247 from the Numbermatics database.

### Names of 1247

• Cardinal: 1247 can be written as One thousand, two hundred forty-seven.

### Scientific notation

• Scientific notation: 1.247 × 103

### Factors of 1247

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 72

### Divisors of 1247

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 1320
• Sum of proper divisors (its aliquot sum) s(n): 73
• 1247 is a deficient number, because the sum of its proper divisors (73) is less than itself. Its deficiency is 1174

### Bases of 1247

• Binary: 100110111112
• Base-36: YN

### Squares and roots of 1247

• 1247 squared (12472) is 1555009
• 1247 cubed (12473) is 1939096223
• The square root of 1247 is 35.3128871661
• The cube root of 1247 is 10.7635488081

### Scales and comparisons

How big is 1247?
• 1,247 seconds is equal to 20 minutes, 47 seconds.
• To count from 1 to 1,247 would take you about twenty 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 1247 cubic inches would be around 0.9 feet tall.

### Recreational maths with 1247

• 1247 backwards is 7421
• The number of decimal digits it has is: 4
• The sum of 1247's digits is 14
• More coming soon!