128121

128,121 is an odd composite number composed of three prime numbers multiplied together.

What does the number 128121 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

128121 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 128121:

3 × 7 × 6101

See below for interesting mathematical facts about the number 128121 from the Numbermatics database.

Names of 128121

Cardinal: 128121 can be written as One hundred twenty-eight thousand, one hundred twenty-one.

Scientific notation

Scientific notation: 1.28121 × 10⁵

Factors of 128121

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 3
Sum of prime factors: 6111

Divisors of 128121

Number of divisors d(n): 8
Complete list of divisors:
1 3 7 21 6101 18303 42707 128121
Sum of all divisors σ(n): 195264
Sum of proper divisors (its aliquot sum) s(n): 67143
128121 is a deficient number, because the sum of its proper divisors (67143) is less than itself. Its deficiency is 60978

Bases of 128121

Binary: 11111010001111001₂
Hexadecimal: 0x1F479
Base-36: 2QUX

Squares and roots of 128121

128121 squared (128121²) is 16414990641
128121 cubed (128121³) is 2103105015915561
The square root of 128121 is 357.9399390959
The cube root of 128121 is 50.4127172493

Scales and comparisons

How big is 128121?

128,121 seconds is equal to 1 day, 11 hours, 35 minutes, 21 seconds.
To count from 1 to 128,121 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 128121 cubic inches would be around 4.2 feet tall.

Recreational maths with 128121

128121 backwards is 121821
The number of decimal digits it has is: 6
The sum of 128121's digits is 15
More coming soon!

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The information we have on file for 128121 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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