243991

243,991 is an odd composite number composed of three prime numbers multiplied together.

What does the number 243991 look like?

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

243991 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 243991:

11 × 41 × 541

See below for interesting mathematical facts about the number 243991 from the Numbermatics database.

Names of 243991

Cardinal: 243991 can be written as Two hundred forty-three thousand, nine hundred ninety-one.

Scientific notation

Scientific notation: 2.43991 × 10⁵

Factors of 243991

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 3
Sum of prime factors: 593

Divisors of 243991

Number of divisors d(n): 8
Complete list of divisors:
1 11 41 451 541 5951 22181 243991
Sum of all divisors σ(n): 273168
Sum of proper divisors (its aliquot sum) s(n): 29177
243991 is a deficient number, because the sum of its proper divisors (29177) is less than itself. Its deficiency is 214814

Bases of 243991

Binary: 111011100100010111₂
Hexadecimal: 0x3B917
Base-36: 589J

Squares and roots of 243991

243991 squared (243991²) is 59531608081
243991 cubed (243991³) is 14525176587291271
The square root of 243991 is 493.9544513415
The cube root of 243991 is 62.4872293907

Scales and comparisons

How big is 243991?

243,991 seconds is equal to 2 days, 19 hours, 46 minutes, 31 seconds.
To count from 1 to 243,991 would take you about two days.

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 243991 cubic inches would be around 5.2 feet tall.

Recreational maths with 243991

243991 backwards is 199342
The number of decimal digits it has is: 6
The sum of 243991's digits is 28
More coming soon!

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The information we have on file for 243991 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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