121981

121,981 is an odd composite number composed of two prime numbers multiplied together.

What does the number 121981 look like?

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

121981 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 121981:

223 × 547

See below for interesting mathematical facts about the number 121981 from the Numbermatics database.

Names of 121981

Cardinal: 121981 can be written as One hundred twenty-one thousand, nine hundred eighty-one.

Scientific notation

Scientific notation: 1.21981 × 10⁵

Factors of 121981

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 770

Divisors of 121981

Number of divisors d(n): 4
Complete list of divisors:
1 223 547 121981
Sum of all divisors σ(n): 122752
Sum of proper divisors (its aliquot sum) s(n): 771
121981 is a deficient number, because the sum of its proper divisors (771) is less than itself. Its deficiency is 121210

Bases of 121981

Binary: 11101110001111101₂
Hexadecimal: 0x1DC7D
Base-36: 2M4D

Squares and roots of 121981

121981 squared (121981²) is 14879364361
121981 cubed (121981³) is 1814999744119141
The square root of 121981 is 349.2577844515
The cube root of 121981 is 49.5941818097

Scales and comparisons

How big is 121981?

121,981 seconds is equal to 1 day, 9 hours, 53 minutes, 1 second.
To count from 1 to 121,981 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 121981 cubic inches would be around 4.1 feet tall.

Recreational maths with 121981

121981 backwards is 189121
The number of decimal digits it has is: 6
The sum of 121981's digits is 22
More coming soon!

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The information we have on file for 121981 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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