138408

138,408 is an even composite number composed of four prime numbers multiplied together.

What does the number 138408 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 32 divisors.

138408 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 138408:

2³ × 3 × 73 × 79

(2 × 2 × 2 × 3 × 73 × 79)

See below for interesting mathematical facts about the number 138408 from the Numbermatics database.

Names of 138408

Cardinal: 138408 can be written as One hundred thirty-eight thousand, four hundred eight.

Scientific notation

Scientific notation: 1.38408 × 10⁵

Factors of 138408

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 157

Divisors of 138408

Number of divisors d(n): 32
Complete list of divisors:
1 2 3 4 6 8 12 24 73 79 146 158 219 237 292 316 438 474 584 632 876 948 1752 1896 5767 11534 17301 23068 34602 46136 69204 138408
Sum of all divisors σ(n): 355200
Sum of proper divisors (its aliquot sum) s(n): 216792
138408 is an abundant number, because the sum of its proper divisors (216792) is greater than itself. Its abundance is 78384

Bases of 138408

Binary: 100001110010101000₂
Hexadecimal: 0x21CA8
Base-36: 2YSO

Squares and roots of 138408

138408 squared (138408²) is 19156774464
138408 cubed (138408³) is 2651450840013312
The square root of 138408 is 372.0322566661
The cube root of 138408 is 51.7273699743

Scales and comparisons

How big is 138408?

138,408 seconds is equal to 1 day, 14 hours, 26 minutes, 48 seconds.
To count from 1 to 138,408 would take you about fourteen 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 138408 cubic inches would be around 4.3 feet tall.

Recreational maths with 138408

138408 backwards is 804831
138408 is a Harshad number.
The number of decimal digits it has is: 6
The sum of 138408's digits is 24
More coming soon!

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The information we have on file for 138408 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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