128129

128,129 is an odd composite number composed of two prime numbers multiplied together.

What does the number 128129 look like?

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

128129 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 128129:

17 × 7537

See below for interesting mathematical facts about the number 128129 from the Numbermatics database.

Names of 128129

Cardinal: 128129 can be written as One hundred twenty-eight thousand, one hundred twenty-nine.

Scientific notation

Scientific notation: 1.28129 × 10⁵

Factors of 128129

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 7554

Divisors of 128129

Number of divisors d(n): 4
Complete list of divisors:
1 17 7537 128129
Sum of all divisors σ(n): 135684
Sum of proper divisors (its aliquot sum) s(n): 7555
128129 is a deficient number, because the sum of its proper divisors (7555) is less than itself. Its deficiency is 120574

Bases of 128129

Binary: 11111010010000001₂
Hexadecimal: 0x1F481
Base-36: 2QV5

Squares and roots of 128129

128129 squared (128129²) is 16417040641
128129 cubed (128129³) is 2103499000290689
The square root of 128129 is 357.9511139807
The cube root of 128129 is 50.4137665005

Scales and comparisons

How big is 128129?

128,129 seconds is equal to 1 day, 11 hours, 35 minutes, 29 seconds.
To count from 1 to 128,129 would take you about eleven 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 128129 cubic inches would be around 4.2 feet tall.

Recreational maths with 128129

128129 backwards is 921821
The number of decimal digits it has is: 6
The sum of 128129's digits is 23
More coming soon!

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The information we have on file for 128129 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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