# 163240

## 163,240 is an even composite number composed of five prime numbers multiplied together.

What does the number 163240 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 64 divisors.

163240 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.

## Prime factorization of 163240:

### 23 × 5 × 7 × 11 × 53

(2 × 2 × 2 × 5 × 7 × 11 × 53)

See below for interesting mathematical facts about the number 163240 from the Numbermatics database.

### Names of 163240

• Cardinal: 163240 can be written as One hundred sixty-three thousand, two hundred forty.

### Scientific notation

• Scientific notation: 1.6324 × 105

### Factors of 163240

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 78

### Divisors of 163240

• Number of divisors d(n): 64
• Complete list of divisors:
• Sum of all divisors σ(n): 466560
• Sum of proper divisors (its aliquot sum) s(n): 303320
• 163240 is an abundant number, because the sum of its proper divisors (303320) is greater than itself. Its abundance is 140080

### Bases of 163240

• Binary: 1001111101101010002
• Base-36: 3HYG

### Squares and roots of 163240

• 163240 squared (1632402) is 26647297600
• 163240 cubed (1632403) is 4349904860224000
• The square root of 163240 is 404.0297018785
• The cube root of 163240 is 54.6523526541

### Scales and comparisons

How big is 163240?
• 163,240 seconds is equal to 21 hours, 20 minutes, 40 seconds.
• To count from 1 to 163,240 would take you about twenty-one hours.

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 163240 cubic inches would be around 4.6 feet tall.

### Recreational maths with 163240

• 163240 backwards is 042361
• The number of decimal digits it has is: 6
• The sum of 163240's digits is 16
• More coming soon!