# 1216

## 1,216 is an even composite number composed of two prime numbers multiplied together.

What does the number 1216 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 14 divisors.

1216 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of fourteen divisors.

## Prime factorization of 1216:

### 26 × 19

(2 × 2 × 2 × 2 × 2 × 2 × 19)

See below for interesting mathematical facts about the number 1216 from the Numbermatics database.

### Names of 1216

• Cardinal: 1216 can be written as One thousand, two hundred sixteen.

### Scientific notation

• Scientific notation: 1.216 × 103

### Factors of 1216

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 21

### Divisors of 1216

• Number of divisors d(n): 14
• Complete list of divisors:
• Sum of all divisors σ(n): 2540
• Sum of proper divisors (its aliquot sum) s(n): 1324
• 1216 is an abundant number, because the sum of its proper divisors (1324) is greater than itself. Its abundance is 108

### Bases of 1216

• Binary: 100110000002
• Base-36: XS

### Squares and roots of 1216

• 1216 squared (12162) is 1478656
• 1216 cubed (12163) is 1798045696
• The square root of 1216 is 34.8711915485
• The cube root of 1216 is 10.6736065947

### Scales and comparisons

How big is 1216?
• 1,216 seconds is equal to 20 minutes, 16 seconds.
• To count from 1 to 1,216 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 1216 cubic inches would be around 0.9 feet tall.

### Recreational maths with 1216

• 1216 backwards is 6121
• The number of decimal digits it has is: 4
• The sum of 1216's digits is 10
• More coming soon!