128625

128,625 is an odd composite number composed of three prime numbers multiplied together.

What does the number 128625 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 32 divisors.

128625 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 128625:

3 × 5³ × 7³

(3 × 5 × 5 × 5 × 7 × 7 × 7)

See below for interesting mathematical facts about the number 128625 from the Numbermatics database.

Names of 128625

Cardinal: 128625 can be written as One hundred twenty-eight thousand, six hundred twenty-five.

Scientific notation

Scientific notation: 1.28625 × 10⁵

Factors of 128625

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 7
Sum of prime factors: 15

Divisors of 128625

Number of divisors d(n): 32
Complete list of divisors:
1 3 5 7 15 21 25 35 49 75 105 125 147 175 245 343 375 525 735 875 1029 1225 1715 2625 3675 5145 6125 8575 18375 25725 42875 128625
Sum of all divisors σ(n): 249600
Sum of proper divisors (its aliquot sum) s(n): 120975
128625 is a deficient number, because the sum of its proper divisors (120975) is less than itself. Its deficiency is 7650

Bases of 128625

Binary: 11111011001110001₂
Hexadecimal: 0x1F671
Base-36: 2R8X

Squares and roots of 128625

128625 squared (128625²) is 16544390625
128625 cubed (128625³) is 2128022244140625
The square root of 128625 is 358.6432768087
The cube root of 128625 is 50.4787349609

Scales and comparisons

How big is 128625?

128,625 seconds is equal to 1 day, 11 hours, 43 minutes, 45 seconds.
To count from 1 to 128,625 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 128625 cubic inches would be around 4.2 feet tall.

Recreational maths with 128625

128625 backwards is 526821
The number of decimal digits it has is: 6
The sum of 128625's digits is 24
More coming soon!

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The information we have on file for 128625 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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