# 221648

## 221,648 is an even composite number composed of three prime numbers multiplied together.

What does the number 221648 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 20 divisors.

221648 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty divisors.

## Prime factorization of 221648:

### 24 × 7 × 1979

(2 × 2 × 2 × 2 × 7 × 1979)

See below for interesting mathematical facts about the number 221648 from the Numbermatics database.

### Names of 221648

• Cardinal: 221648 can be written as Two hundred twenty-one thousand, six hundred forty-eight.

### Scientific notation

• Scientific notation: 2.21648 × 105

### Factors of 221648

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1988

### Divisors of 221648

• Number of divisors d(n): 20
• Complete list of divisors:
• Sum of all divisors σ(n): 491040
• Sum of proper divisors (its aliquot sum) s(n): 269392
• 221648 is an abundant number, because the sum of its proper divisors (269392) is greater than itself. Its abundance is 47744

### Bases of 221648

• Binary: 1101100001110100002
• Base-36: 4R0W

### Squares and roots of 221648

• 221648 squared (2216482) is 49127835904
• 221648 cubed (2216483) is 10889086572449792
• The square root of 221648 is 470.7950721917
• The cube root of 221648 is 60.5184698747

### Scales and comparisons

How big is 221648?
• 221,648 seconds is equal to 2 days, 13 hours, 34 minutes, 8 seconds.
• To count from 1 to 221,648 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 221648 cubic inches would be around 5 feet tall.

### Recreational maths with 221648

• 221648 backwards is 846122
• The number of decimal digits it has is: 6
• The sum of 221648's digits is 23
• More coming soon!