21288156

21,288,156 is an even composite number composed of five prime numbers multiplied together.

What does the number 21288156 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

21288156 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21288156:

2² × 3 × 23 × 137 × 563

(2 × 2 × 3 × 23 × 137 × 563)

See below for interesting mathematical facts about the number 21288156 from the Numbermatics database.

Names of 21288156

Cardinal: 21288156 can be written as Twenty-one million, two hundred eighty-eight thousand, one hundred fifty-six.

Scientific notation

Scientific notation: 2.1288156 × 10⁷

Factors of 21288156

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 728

Divisors of 21288156

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 6 12 23 46 69 92 137 138 274 276 411 548 563 822 1126 1644 1689 2252 3151 3378 6302 6756 9453 12604 12949 18906 25898 37812 38847 51796 77131 77694 154262 155388 231393 308524 462786 925572 1774013 3548026 5322039 7096052 10644078 21288156
Sum of all divisors σ(n): 52303104
Sum of proper divisors (its aliquot sum) s(n): 31014948
21288156 is an abundant number, because the sum of its proper divisors (31014948) is greater than itself. Its abundance is 9726792

Bases of 21288156

Binary: 1010001001101010011011100₂
Hexadecimal: 0x144D4DC
Base-36: COA1O

Squares and roots of 21288156

21288156 squared (21288156²) is 453185585880336
21288156 cubed (21288156³) is 9647485449171990100416
The square root of 21288156 is 4613.9089717939
The cube root of 21288156 is 277.1485950459

Scales and comparisons

How big is 21288156?

21,288,156 seconds is equal to 35 weeks, 1 day, 9 hours, 22 minutes, 36 seconds.
To count from 1 to 21,288,156 would take you about five 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 21288156 cubic inches would be around 23.1 feet tall.

Recreational maths with 21288156

21288156 backwards is 65188212
The number of decimal digits it has is: 8
The sum of 21288156's digits is 33
More coming soon!

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The information we have on file for 21288156 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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