# 947

## 947 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 947 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

947 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 947:

### 947

See below for interesting mathematical facts about the number 947 from the Numbermatics database.

### Names of 947

• Cardinal: 947 can be written as Nine hundred forty-seven.

### Scientific notation

• Scientific notation: 9.47 × 102

### Factors of 947

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 947

### Divisors of 947

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 948
• Sum of proper divisors (its aliquot sum) s(n): 1
• 947 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 946

### Bases of 947

• Binary: 11101100112
• Base-36: QB

### Squares and roots of 947

• 947 squared (9472) is 896809
• 947 cubed (9473) is 849278123
• The square root of 947 is 30.7733651069
• The cube root of 947 is 9.8201169441

### Scales and comparisons

How big is 947?
• 947 seconds is equal to 15 minutes, 47 seconds.
• To count from 1 to 947 would take you about seven 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 947 cubic inches would be around 0.8 feet tall.

### Recreational maths with 947

• 947 backwards is 749
• The number of decimal digits it has is: 3
• The sum of 947's digits is 20
• More coming soon!