20997

20,997 is an odd composite number composed of two prime numbers multiplied together.

What does the number 20997 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

20997 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 20997:

3² × 2333

(3 × 3 × 2333)

See below for interesting mathematical facts about the number 20997 from the Numbermatics database.

Names of 20997

Cardinal: 20997 can be written as Twenty thousand, nine hundred ninety-seven.

Scientific notation

Scientific notation: 2.0997 × 10⁴

Factors of 20997

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 2336

Divisors of 20997

Number of divisors d(n): 6
Complete list of divisors:
1 3 9 2333 6999 20997
Sum of all divisors σ(n): 30342
Sum of proper divisors (its aliquot sum) s(n): 9345
20997 is a deficient number, because the sum of its proper divisors (9345) is less than itself. Its deficiency is 11652

Bases of 20997

Binary: 101001000000101₂
Hexadecimal: 0x5205
Base-36: G79

Squares and roots of 20997

20997 squared (20997²) is 440874009
20997 cubed (20997³) is 9257031566973
The square root of 20997 is 144.9034161088
The cube root of 20997 is 27.5879279279

Scales and comparisons

How big is 20997?

20,997 seconds is equal to 5 hours, 49 minutes, 57 seconds.
To count from 1 to 20,997 would take you about five 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 20997 cubic inches would be around 2.3 feet tall.

Recreational maths with 20997

20997 backwards is 79902
The number of decimal digits it has is: 5
The sum of 20997's digits is 27
More coming soon!

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The information we have on file for 20997 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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