128490

128,490 is an even composite number composed of four prime numbers multiplied together.

What does the number 128490 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 16 divisors.

128490 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 128490:

2 × 3 × 5 × 4283

See below for interesting mathematical facts about the number 128490 from the Numbermatics database.

Names of 128490

Cardinal: 128490 can be written as One hundred twenty-eight thousand, four hundred ninety.

Scientific notation

Scientific notation: 1.2849 × 10⁵

Factors of 128490

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 4293

Divisors of 128490

Number of divisors d(n): 16
Complete list of divisors:
1 2 3 5 6 10 15 30 4283 8566 12849 21415 25698 42830 64245 128490
Sum of all divisors σ(n): 308448
Sum of proper divisors (its aliquot sum) s(n): 179958
128490 is an abundant number, because the sum of its proper divisors (179958) is greater than itself. Its abundance is 51468

Bases of 128490

Binary: 11111010111101010₂
Hexadecimal: 0x1F5EA
Base-36: 2R56

Squares and roots of 128490

128490 squared (128490²) is 16509680100
128490 cubed (128490³) is 2121328796049000
The square root of 128490 is 358.4550180985
The cube root of 128490 is 50.4610685799

Scales and comparisons

How big is 128490?

128,490 seconds is equal to 1 day, 11 hours, 41 minutes, 30 seconds.
To count from 1 to 128,490 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 128490 cubic inches would be around 4.2 feet tall.

Recreational maths with 128490

128490 backwards is 094821
The number of decimal digits it has is: 6
The sum of 128490's digits is 24
More coming soon!

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The information we have on file for 128490 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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