139209

139,209 is an odd composite number composed of three prime numbers multiplied together.

What does the number 139209 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

139209 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 139209:

3 × 7² × 947

(3 × 7 × 7 × 947)

See below for interesting mathematical facts about the number 139209 from the Numbermatics database.

Names of 139209

Cardinal: 139209 can be written as One hundred thirty-nine thousand, two hundred nine.

Scientific notation

Scientific notation: 1.39209 × 10⁵

Factors of 139209

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 957

Divisors of 139209

Number of divisors d(n): 12
Complete list of divisors:
1 3 7 21 49 147 947 2841 6629 19887 46403 139209
Sum of all divisors σ(n): 216144
Sum of proper divisors (its aliquot sum) s(n): 76935
139209 is a deficient number, because the sum of its proper divisors (76935) is less than itself. Its deficiency is 62274

Bases of 139209

Binary: 100001111111001001₂
Hexadecimal: 0x21FC9
Base-36: 2ZEX

Squares and roots of 139209

139209 squared (139209²) is 19379145681
139209 cubed (139209³) is 2697751491106329
The square root of 139209 is 373.1072231947
The cube root of 139209 is 51.8269642911

Scales and comparisons

How big is 139209?

139,209 seconds is equal to 1 day, 14 hours, 40 minutes, 9 seconds.
To count from 1 to 139,209 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 139209 cubic inches would be around 4.3 feet tall.

Recreational maths with 139209

139209 backwards is 902931
The number of decimal digits it has is: 6
The sum of 139209's digits is 24
More coming soon!

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The information we have on file for 139209 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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