129842

129,842 is an even composite number composed of two prime numbers multiplied together.

What does the number 129842 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

129842 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 129842:

2 × 64921

See below for interesting mathematical facts about the number 129842 from the Numbermatics database.

Names of 129842

Cardinal: 129842 can be written as One hundred twenty-nine thousand, eight hundred forty-two.

Scientific notation

Scientific notation: 1.29842 × 10⁵

Factors of 129842

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 64923

Divisors of 129842

Number of divisors d(n): 4
Complete list of divisors:
1 2 64921 129842
Sum of all divisors σ(n): 194766
Sum of proper divisors (its aliquot sum) s(n): 64924
129842 is a deficient number, because the sum of its proper divisors (64924) is less than itself. Its deficiency is 64918

Bases of 129842

Binary: 11111101100110010₂
Hexadecimal: 0x1FB32
Base-36: 2S6Q

Squares and roots of 129842

129842 squared (129842²) is 16858944964
129842 cubed (129842³) is 2188999132015688
The square root of 129842 is 360.3359543539
The cube root of 129842 is 50.6374388985

Scales and comparisons

How big is 129842?

129,842 seconds is equal to 1 day, 12 hours, 4 minutes, 2 seconds.
To count from 1 to 129,842 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 129842 cubic inches would be around 4.2 feet tall.

Recreational maths with 129842

129842 backwards is 248921
The number of decimal digits it has is: 6
The sum of 129842's digits is 26
More coming soon!

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The information we have on file for 129842 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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