121809

121,809 is an odd composite number composed of three prime numbers multiplied together.

What does the number 121809 look like?

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

121809 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 121809:

3 × 19 × 2137

See below for interesting mathematical facts about the number 121809 from the Numbermatics database.

Names of 121809

Cardinal: 121809 can be written as One hundred twenty-one thousand, eight hundred nine.

Scientific notation

Scientific notation: 1.21809 × 10⁵

Factors of 121809

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 3
Sum of prime factors: 2159

Divisors of 121809

Number of divisors d(n): 8
Complete list of divisors:
1 3 19 57 2137 6411 40603 121809
Sum of all divisors σ(n): 171040
Sum of proper divisors (its aliquot sum) s(n): 49231
121809 is a deficient number, because the sum of its proper divisors (49231) is less than itself. Its deficiency is 72578

Bases of 121809

Binary: 11101101111010001₂
Hexadecimal: 0x1DBD1
Base-36: 2LZL

Squares and roots of 121809

121809 squared (121809²) is 14837432481
121809 cubed (121809³) is 1807332813078129
The square root of 121809 is 349.0114611299
The cube root of 121809 is 49.5708606593

Scales and comparisons

How big is 121809?

121,809 seconds is equal to 1 day, 9 hours, 50 minutes, 9 seconds.
To count from 1 to 121,809 would take you about nine 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 121809 cubic inches would be around 4.1 feet tall.

Recreational maths with 121809

121809 backwards is 908121
The number of decimal digits it has is: 6
The sum of 121809's digits is 21
More coming soon!

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The information we have on file for 121809 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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