138378478

138,378,478 is an even composite number composed of four prime numbers multiplied together.

What does the number 138378478 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 16 divisors.

138378478 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 138378478:

2 × 7 × 523 × 18899

See below for interesting mathematical facts about the number 138378478 from the Numbermatics database.

Names of 138378478

Cardinal: 138378478 can be written as One hundred thirty-eight million, three hundred seventy-eight thousand, four hundred seventy-eight.

Scientific notation

Scientific notation: 1.38378478 × 10⁸

Factors of 138378478

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 19431

Divisors of 138378478

Number of divisors d(n): 16
Complete list of divisors:
1 2 7 14 523 1046 3661 7322 18899 37798 132293 264586 9884177 19768354 69189239 138378478
Sum of all divisors σ(n): 237686400
Sum of proper divisors (its aliquot sum) s(n): 99307922
138378478 is a deficient number, because the sum of its proper divisors (99307922) is less than itself. Its deficiency is 39070556

Bases of 138378478

Binary: 1000001111110111110011101110₂
Hexadecimal: 0x83F7CEE
Base-36: 2ADXIM

Squares and roots of 138378478

138378478 squared (138378478²) is 19148603173596484
138378478 cubed (138378478³) is 2649754562988251242071352
The square root of 138378478 is 11763.4381878767
The cube root of 138378478 is 517.2369194989

Scales and comparisons

How big is 138378478?

138,378,478 seconds is equal to 4 years, 20 weeks, 5 days, 14 hours, 27 minutes, 58 seconds.
To count from 1 to 138,378,478 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 138378478 cubic inches would be around 43.1 feet tall.

Recreational maths with 138378478

138378478 backwards is 874873831
The number of decimal digits it has is: 9
The sum of 138378478's digits is 49
More coming soon!

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The information we have on file for 138378478 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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