# 221648

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

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: 110110000111010000 2
• 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.

Note: 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!

The information we have on file for 221648 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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