18221328

18,221,328 is an even composite number composed of three prime numbers multiplied together.

What does the number 18221328 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 40 divisors.

18221328 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of forty divisors.

Prime factorization of 18221328:

2⁴ × 3³ × 42179

(2 × 2 × 2 × 2 × 3 × 3 × 3 × 42179)

See below for interesting mathematical facts about the number 18221328 from the Numbermatics database.

Names of 18221328

Cardinal: 18221328 can be written as Eighteen million, two hundred twenty-one thousand, three hundred twenty-eight.

Scientific notation

Scientific notation: 1.8221328 × 10⁷

Factors of 18221328

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 8
Sum of prime factors: 42184

Divisors of 18221328

Number of divisors d(n): 40
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 42179 84358 126537 168716 253074 337432 379611 506148 674864 759222 1012296 1138833 1518444 2024592 2277666 3036888 4555332 6073776 9110664 18221328
Sum of all divisors σ(n): 52303200
Sum of proper divisors (its aliquot sum) s(n): 34081872
18221328 is an abundant number, because the sum of its proper divisors (34081872) is greater than itself. Its abundance is 15860544

Bases of 18221328

Binary: 1000101100000100100010000₂
Hexadecimal: 0x1160910
Base-36: AUJO0

Squares and roots of 18221328

18221328 squared (18221328²) is 332016794083584
18221328 cubed (18221328³) is 6049786906505443479552
The square root of 18221328 is 4268.6447498005
The cube root of 18221328 is 263.1439211891

Scales and comparisons

How big is 18221328?

18,221,328 seconds is equal to 30 weeks, 21 hours, 28 minutes, 48 seconds.
To count from 1 to 18,221,328 would take you about forty-five weeks!

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 18221328 cubic inches would be around 21.9 feet tall.

Recreational maths with 18221328

18221328 backwards is 82312281
18221328 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 18221328's digits is 27
More coming soon!

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The information we have on file for 18221328 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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