# 218240

## 218,240 is an even composite number composed of four prime numbers multiplied together.

What does the number 218240 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 64 divisors.

218240 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty-four divisors.

## Prime factorization of 218240:

### 27 × 5 × 11 × 31

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 11 × 31)

See below for interesting mathematical facts about the number 218240 from the Numbermatics database.

### Names of 218240

• Cardinal: 218240 can be written as Two hundred eighteen thousand, two hundred forty.

### Scientific notation

• Scientific notation: 2.1824 × 105

### Factors of 218240

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 49

### Divisors of 218240

• Number of divisors d(n): 64
• Complete list of divisors:
• Sum of all divisors σ(n): 587520
• Sum of proper divisors (its aliquot sum) s(n): 369280
• 218240 is an abundant number, because the sum of its proper divisors (369280) is greater than itself. Its abundance is 151040

### Bases of 218240

• Binary: 1101010100100000002
• Base-36: 4OE8

### Squares and roots of 218240

• 218240 squared (2182402) is 47628697600
• 218240 cubed (2182403) is 10394486964224000
• The square root of 218240 is 467.1616422613
• The cube root of 218240 is 60.2066945459

### Scales and comparisons

How big is 218240?
• 218,240 seconds is equal to 2 days, 12 hours, 37 minutes, 20 seconds.
• To count from 1 to 218,240 would take you about two days.

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 218240 cubic inches would be around 5 feet tall.

### Recreational maths with 218240

• 218240 backwards is 042812
• The number of decimal digits it has is: 6
• The sum of 218240's digits is 17
• More coming soon!