13218438

13,218,438 is an even composite number composed of four prime numbers multiplied together.

What does the number 13218438 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

13218438 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 13218438:

2 × 3 × 79² × 353

(2 × 3 × 79 × 79 × 353)

See below for interesting mathematical facts about the number 13218438 from the Numbermatics database.

Names of 13218438

Cardinal: 13218438 can be written as Thirteen million, two hundred eighteen thousand, four hundred thirty-eight.

Scientific notation

Scientific notation: 1.3218438 × 10⁷

Factors of 13218438

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 437

Divisors of 13218438

Number of divisors d(n): 24
Complete list of divisors:
1 2 3 6 79 158 237 353 474 706 1059 2118 6241 12482 18723 27887 37446 55774 83661 167322 2203073 4406146 6609219 13218438
Sum of all divisors σ(n): 26851608
Sum of proper divisors (its aliquot sum) s(n): 13633170
13218438 is an abundant number, because the sum of its proper divisors (13633170) is greater than itself. Its abundance is 414732

Bases of 13218438

Binary: 110010011011001010000110₂
Hexadecimal: 0xC9B286
Base-36: 7VBEU

Squares and roots of 13218438

13218438 squared (13218438²) is 174727103159844
13218438 cubed (13218438³) is 2309619380038002003672
The square root of 13218438 is 3635.7169856853
The cube root of 13218438 is 236.4431370457

Scales and comparisons

How big is 13218438?

13,218,438 seconds is equal to 21 weeks, 5 days, 23 hours, 47 minutes, 18 seconds.
To count from 1 to 13,218,438 would take you about thirty-two 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 13218438 cubic inches would be around 19.7 feet tall.

Recreational maths with 13218438

13218438 backwards is 83481231
The number of decimal digits it has is: 8
The sum of 13218438's digits is 30
More coming soon!

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The information we have on file for 13218438 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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