128628

128,628 is an even composite number composed of three prime numbers multiplied together.

What does the number 128628 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 30 divisors.

128628 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of thirty divisors.

Prime factorization of 128628:

2² × 3⁴ × 397

(2 × 2 × 3 × 3 × 3 × 3 × 397)

See below for interesting mathematical facts about the number 128628 from the Numbermatics database.

Names of 128628

Cardinal: 128628 can be written as One hundred twenty-eight thousand, six hundred twenty-eight.

Scientific notation

Scientific notation: 1.28628 × 10⁵

Factors of 128628

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 7
Sum of prime factors: 402

Divisors of 128628

Number of divisors d(n): 30
Complete list of divisors:
1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 397 794 1191 1588 2382 3573 4764 7146 10719 14292 21438 32157 42876 64314 128628
Sum of all divisors σ(n): 337106
Sum of proper divisors (its aliquot sum) s(n): 208478
128628 is an abundant number, because the sum of its proper divisors (208478) is greater than itself. Its abundance is 79850

Bases of 128628

Binary: 11111011001110100₂
Hexadecimal: 0x1F674
Base-36: 2R90

Squares and roots of 128628

128628 squared (128628²) is 16545162384
128628 cubed (128628³) is 2128171147129152
The square root of 128628 is 358.6474592131
The cube root of 128628 is 50.4791274065

Scales and comparisons

How big is 128628?

128,628 seconds is equal to 1 day, 11 hours, 43 minutes, 48 seconds.
To count from 1 to 128,628 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 128628 cubic inches would be around 4.2 feet tall.

Recreational maths with 128628

128628 backwards is 826821
128628 is a Harshad number.
The number of decimal digits it has is: 6
The sum of 128628's digits is 27
More coming soon!

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The information we have on file for 128628 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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