138807305

138,807,305 is an odd composite number composed of five prime numbers multiplied together.

What does the number 138807305 look like?

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

138807305 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 138807305:

5 × 7 × 13² × 31 × 757

(5 × 7 × 13 × 13 × 31 × 757)

See below for interesting mathematical facts about the number 138807305 from the Numbermatics database.

Names of 138807305

Cardinal: 138807305 can be written as One hundred thirty-eight million, eight hundred seven thousand, three hundred five.

Scientific notation

Scientific notation: 1.38807305 × 10⁸

Factors of 138807305

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 813

Divisors of 138807305

Number of divisors d(n): 48
Complete list of divisors:
1 5 7 13 31 35 65 91 155 169 217 403 455 757 845 1085 1183 2015 2821 3785 5239 5299 5915 9841 14105 23467 26195 26495 36673 49205 68887 117335 127933 164269 183365 305071 344435 639665 821345 895531 1525355 2135497 3965923 4477655 10677485 19829615 27761461 138807305
Sum of all divisors σ(n): 213064704
Sum of proper divisors (its aliquot sum) s(n): 74257399
138807305 is a deficient number, because the sum of its proper divisors (74257399) is less than itself. Its deficiency is 64549906

Bases of 138807305

Binary: 1000010001100000100000001001₂
Hexadecimal: 0x8460809
Base-36: 2AN4EH

Squares and roots of 138807305

138807305 squared (138807305²) is 19267467921363025
138807305 cubed (138807305³) is 2674465296338353426897625
The square root of 138807305 is 11781.6512000653
The cube root of 138807305 is 517.7706644203

Scales and comparisons

How big is 138807305?

138,807,305 seconds is equal to 4 years, 21 weeks, 3 days, 13 hours, 35 minutes, 5 seconds.
To count from 1 to 138,807,305 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 138807305 cubic inches would be around 43.1 feet tall.

Recreational maths with 138807305

138807305 backwards is 503708831
138807305 is a Harshad number.
The number of decimal digits it has is: 9
The sum of 138807305's digits is 35
More coming soon!

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The information we have on file for 138807305 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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