129928

129,928 is an even composite number composed of three prime numbers multiplied together.

What does the number 129928 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 16 divisors.

129928 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 129928:

2³ × 109 × 149

(2 × 2 × 2 × 109 × 149)

See below for interesting mathematical facts about the number 129928 from the Numbermatics database.

Names of 129928

Cardinal: 129928 can be written as One hundred twenty-nine thousand, nine hundred twenty-eight.

Scientific notation

Scientific notation: 1.29928 × 10⁵

Factors of 129928

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 260

Divisors of 129928

Number of divisors d(n): 16
Complete list of divisors:
1 2 4 8 109 149 218 298 436 596 872 1192 16241 32482 64964 129928
Sum of all divisors σ(n): 247500
Sum of proper divisors (its aliquot sum) s(n): 117572
129928 is a deficient number, because the sum of its proper divisors (117572) is less than itself. Its deficiency is 12356

Bases of 129928

Binary: 11111101110001000₂
Hexadecimal: 0x1FB88
Base-36: 2S94

Squares and roots of 129928

129928 squared (129928²) is 16881285184
129928 cubed (129928³) is 2193351621386752
The square root of 129928 is 360.4552676825
The cube root of 129928 is 50.6486162233

Scales and comparisons

How big is 129928?

129,928 seconds is equal to 1 day, 12 hours, 5 minutes, 28 seconds.
To count from 1 to 129,928 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 129928 cubic inches would be around 4.2 feet tall.

Recreational maths with 129928

129928 backwards is 829921
The number of decimal digits it has is: 6
The sum of 129928's digits is 31
More coming soon!

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The information we have on file for 129928 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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