18216

18,216 is an even composite number composed of four prime numbers multiplied together.

What does the number 18216 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 48 divisors.

18216 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 18216:

2³ × 3² × 11 × 23

(2 × 2 × 2 × 3 × 3 × 11 × 23)

See below for interesting mathematical facts about the number 18216 from the Numbermatics database.

Names of 18216

Cardinal: 18216 can be written as Eighteen thousand, two hundred sixteen.

Scientific notation

Scientific notation: 1.8216 × 10⁴

Factors of 18216

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 39

Divisors of 18216

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 6 8 9 11 12 18 22 23 24 33 36 44 46 66 69 72 88 92 99 132 138 184 198 207 253 264 276 396 414 506 552 759 792 828 1012 1518 1656 2024 2277 3036 4554 6072 9108 18216
Sum of all divisors σ(n): 56160
Sum of proper divisors (its aliquot sum) s(n): 37944
18216 is an abundant number, because the sum of its proper divisors (37944) is greater than itself. Its abundance is 19728

Bases of 18216

Binary: 100011100101000₂
Hexadecimal: 0x4728
Base-36: E20

Squares and roots of 18216

18216 squared (18216²) is 331822656
18216 cubed (18216³) is 6044481501696
The square root of 18216 is 134.9666625505
The cube root of 18216 is 26.3118270525

Scales and comparisons

How big is 18216?

18,216 seconds is equal to 5 hours, 3 minutes, 36 seconds.
To count from 1 to 18,216 would take you about five hours.

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 18216 cubic inches would be around 2.2 feet tall.

Recreational maths with 18216

18216 backwards is 61281
18216 is a Harshad number.
The number of decimal digits it has is: 5
The sum of 18216's digits is 18
More coming soon!

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The information we have on file for 18216 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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