129942

129,942 is an even composite number composed of three prime numbers multiplied together.

What does the number 129942 look like?

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

129942 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 129942:

2 × 3² × 7219

(2 × 3 × 3 × 7219)

See below for interesting mathematical facts about the number 129942 from the Numbermatics database.

Names of 129942

Cardinal: 129942 can be written as One hundred twenty-nine thousand, nine hundred forty-two.

Scientific notation

Scientific notation: 1.29942 × 10⁵

Factors of 129942

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 7224

Divisors of 129942

Number of divisors d(n): 12
Complete list of divisors:
1 2 3 6 9 18 7219 14438 21657 43314 64971 129942
Sum of all divisors σ(n): 281580
Sum of proper divisors (its aliquot sum) s(n): 151638
129942 is an abundant number, because the sum of its proper divisors (151638) is greater than itself. Its abundance is 21696

Bases of 129942

Binary: 11111101110010110₂
Hexadecimal: 0x1FB96
Base-36: 2S9I

Squares and roots of 129942

129942 squared (129942²) is 16884923364
129942 cubed (129942³) is 2194060711764888
The square root of 129942 is 360.4746870447
The cube root of 129942 is 50.6504353207

Scales and comparisons

How big is 129942?

129,942 seconds is equal to 1 day, 12 hours, 5 minutes, 42 seconds.
To count from 1 to 129,942 would take you about twelve 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 129942 cubic inches would be around 4.2 feet tall.

Recreational maths with 129942

129942 backwards is 249921
The number of decimal digits it has is: 6
The sum of 129942's digits is 27
More coming soon!

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The information we have on file for 129942 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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