221389128

221,389,128 is an even composite number composed of three prime numbers multiplied together.

What does the number 221389128 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 24 divisors.

221389128 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 221389128:

2³ × 3² × 3074849

(2 × 2 × 2 × 3 × 3 × 3074849)

See below for interesting mathematical facts about the number 221389128 from the Numbermatics database.

Names of 221389128

Cardinal: 221389128 can be written as Two hundred twenty-one million, three hundred eighty-nine thousand, one hundred twenty-eight.

Scientific notation

Scientific notation: 2.21389128 × 10⁸

Factors of 221389128

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 6
Sum of prime factors: 3074854

Divisors of 221389128

Number of divisors d(n): 24
Complete list of divisors:
1 2 3 4 6 8 9 12 18 24 36 72 3074849 6149698 9224547 12299396 18449094 24598792 27673641 36898188 55347282 73796376 110694564 221389128
Sum of all divisors σ(n): 599595750
Sum of proper divisors (its aliquot sum) s(n): 378206622
221389128 is an abundant number, because the sum of its proper divisors (378206622) is greater than itself. Its abundance is 156817494

Bases of 221389128

Binary: 1101001100100010000101001000₂
Hexadecimal: 0xD322148
Base-36: 3NT4Y0

Squares and roots of 221389128

221389128 squared (221389128²) is 49013145996600384
221389128 cubed (221389128³) is 10850977652724049978225152
The square root of 221389128 is 14879.1507822187
The cube root of 221389128 is 604.9490000951

Scales and comparisons

How big is 221389128?

221,389,128 seconds is equal to 7 years, 2 weeks, 8 hours, 58 minutes, 48 seconds.
To count from 1 to 221,389,128 would take you about ten years!

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 221389128 cubic inches would be around 50.4 feet tall.

Recreational maths with 221389128

221389128 backwards is 821983122
221389128 is a Harshad number.
The number of decimal digits it has is: 9
The sum of 221389128's digits is 36
More coming soon!

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The information we have on file for 221389128 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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