138655620

138,655,620 is an even composite number composed of four prime numbers multiplied together.

What does the number 138655620 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 36 divisors.

138655620 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-six divisors.

Prime factorization of 138655620:

2² × 3² × 5 × 770309

(2 × 2 × 3 × 3 × 5 × 770309)

See below for interesting mathematical facts about the number 138655620 from the Numbermatics database.

Names of 138655620

Cardinal: 138655620 can be written as One hundred thirty-eight million, six hundred fifty-five thousand, six hundred twenty.

Scientific notation

Scientific notation: 1.3865562 × 10⁸

Factors of 138655620

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 770319

Divisors of 138655620

Number of divisors d(n): 36
Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 770309 1540618 2310927 3081236 3851545 4621854 6932781 7703090 9243708 11554635 13865562 15406180 23109270 27731124 34663905 46218540 69327810 138655620
Sum of all divisors σ(n): 420589260
Sum of proper divisors (its aliquot sum) s(n): 281933640
138655620 is an abundant number, because the sum of its proper divisors (281933640) is greater than itself. Its abundance is 143278020

Bases of 138655620

Binary: 1000010000111011011110000100₂
Hexadecimal: 0x843B784
Base-36: 2AJVD0

Squares and roots of 138655620

138655620 squared (138655620²) is 19225380957584400
138655620 cubed (138655620³) is 2665707116410058684328000
The square root of 138655620 is 11775.2121000005
The cube root of 138655620 is 517.5819935893

Scales and comparisons

How big is 138655620?

138,655,620 seconds is equal to 4 years, 21 weeks, 1 day, 19 hours, 27 minutes.
To count from 1 to 138,655,620 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 138655620 cubic inches would be around 43.1 feet tall.

Recreational maths with 138655620

138655620 backwards is 026556831
138655620 is a Harshad number.
The number of decimal digits it has is: 9
The sum of 138655620's digits is 36
More coming soon!

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The information we have on file for 138655620 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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