121729

121,729 is an odd composite number composed of two prime numbers multiplied together.

What does the number 121729 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

121729 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 121729:

41 × 2969

See below for interesting mathematical facts about the number 121729 from the Numbermatics database.

Names of 121729

Cardinal: 121729 can be written as One hundred twenty-one thousand, seven hundred twenty-nine.

Scientific notation

Scientific notation: 1.21729 × 10⁵

Factors of 121729

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 3010

Divisors of 121729

Number of divisors d(n): 4
Complete list of divisors:
1 41 2969 121729
Sum of all divisors σ(n): 124740
Sum of proper divisors (its aliquot sum) s(n): 3011
121729 is a deficient number, because the sum of its proper divisors (3011) is less than itself. Its deficiency is 118718

Bases of 121729

Binary: 11101101110000001₂
Hexadecimal: 0x1DB81
Base-36: 2LXD

Squares and roots of 121729

121729 squared (121729²) is 14817949441
121729 cubed (121729³) is 1803774167503489
The square root of 121729 is 348.8968328891
The cube root of 121729 is 49.5600061319

Scales and comparisons

How big is 121729?

121,729 seconds is equal to 1 day, 9 hours, 48 minutes, 49 seconds.
To count from 1 to 121,729 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 121729 cubic inches would be around 4.1 feet tall.

Recreational maths with 121729

121729 backwards is 927121
The number of decimal digits it has is: 6
The sum of 121729's digits is 22
More coming soon!

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The information we have on file for 121729 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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