128825

128,825 is an odd composite number composed of two prime numbers multiplied together.

What does the number 128825 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

128825 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 128825:

5² × 5153

(5 × 5 × 5153)

See below for interesting mathematical facts about the number 128825 from the Numbermatics database.

Names of 128825

Cardinal: 128825 can be written as One hundred twenty-eight thousand, eight hundred twenty-five.

Scientific notation

Scientific notation: 1.28825 × 10⁵

Factors of 128825

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 5158

Divisors of 128825

Number of divisors d(n): 6
Complete list of divisors:
1 5 25 5153 25765 128825
Sum of all divisors σ(n): 159774
Sum of proper divisors (its aliquot sum) s(n): 30949
128825 is a deficient number, because the sum of its proper divisors (30949) is less than itself. Its deficiency is 97876

Bases of 128825

Binary: 11111011100111001₂
Hexadecimal: 0x1F739
Base-36: 2REH

Squares and roots of 128825

128825 squared (128825²) is 16595880625
128825 cubed (128825³) is 2137964321515625
The square root of 128825 is 358.9219970967
The cube root of 128825 is 50.5048846695

Scales and comparisons

How big is 128825?

128,825 seconds is equal to 1 day, 11 hours, 47 minutes, 5 seconds.
To count from 1 to 128,825 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 128825 cubic inches would be around 4.2 feet tall.

Recreational maths with 128825

128825 backwards is 528821
The number of decimal digits it has is: 6
The sum of 128825's digits is 26
More coming soon!

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The information we have on file for 128825 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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