138888442

138,888,442 is an even composite number composed of five prime numbers multiplied together.

What does the number 138888442 look like?

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

138888442 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 138888442:

2 × 7² × 11 × 19 × 6781

(2 × 7 × 7 × 11 × 19 × 6781)

See below for interesting mathematical facts about the number 138888442 from the Numbermatics database.

Names of 138888442

Cardinal: 138888442 can be written as One hundred thirty-eight million, eight hundred eighty-eight thousand, four hundred forty-two.

Scientific notation

Scientific notation: 1.38888442 × 10⁸

Factors of 138888442

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 6820

Divisors of 138888442

Number of divisors d(n): 48
Complete list of divisors:
1 2 7 11 14 19 22 38 49 77 98 133 154 209 266 418 539 931 1078 1463 1862 2926 6781 10241 13562 20482 47467 74591 94934 128839 149182 257678 332269 522137 664538 901873 1044274 1417229 1803746 2834458 3654959 6313111 7309918 9920603 12626222 19841206 69444221 138888442
Sum of all divisors σ(n): 278333280
Sum of proper divisors (its aliquot sum) s(n): 139444838
138888442 is an abundant number, because the sum of its proper divisors (139444838) is greater than itself. Its abundance is 556396

Bases of 138888442

Binary: 1000010001110100010011111010₂
Hexadecimal: 0x84744FA
Base-36: 2AOV0A

Squares and roots of 138888442

138888442 squared (138888442²) is 19289999321187364
138888442 cubed (138888442³) is 2679157951900770576046888
The square root of 138888442 is 11785.0940598707
The cube root of 138888442 is 517.8715288899

Scales and comparisons

How big is 138888442?

138,888,442 seconds is equal to 4 years, 21 weeks, 4 days, 12 hours, 7 minutes, 22 seconds.
To count from 1 to 138,888,442 would take you about six 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 138888442 cubic inches would be around 43.2 feet tall.

Recreational maths with 138888442

138888442 backwards is 244888831
The number of decimal digits it has is: 9
The sum of 138888442's digits is 46
More coming soon!

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The information we have on file for 138888442 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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