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:
1 2 4 7 8 14 16 28 56 112 1979 3958 7916 13853 15832 27706 31664 55412 110824 221648
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
Hexadecimal: 0x361D0
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!

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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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