20439

20,439 is an odd composite number composed of two prime numbers multiplied together.

What does the number 20439 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 8 divisors.

20439 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 20439:

3³ × 757

(3 × 3 × 3 × 757)

See below for interesting mathematical facts about the number 20439 from the Numbermatics database.

Names of 20439

Cardinal: 20439 can be written as Twenty thousand, four hundred thirty-nine.

Scientific notation

Scientific notation: 2.0439 × 10⁴

Factors of 20439

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 4
Sum of prime factors: 760

Divisors of 20439

Number of divisors d(n): 8
Complete list of divisors:
1 3 9 27 757 2271 6813 20439
Sum of all divisors σ(n): 30320
Sum of proper divisors (its aliquot sum) s(n): 9881
20439 is a deficient number, because the sum of its proper divisors (9881) is less than itself. Its deficiency is 10558

Bases of 20439

Binary: 100111111010111₂
Hexadecimal: 0x4FD7
Base-36: FRR

Squares and roots of 20439

20439 squared (20439²) is 417752721
20439 cubed (20439³) is 8538447864519
The square root of 20439 is 142.9650306893
The cube root of 20439 is 27.3413453939

Scales and comparisons

How big is 20439?

20,439 seconds is equal to 5 hours, 40 minutes, 39 seconds.
To count from 1 to 20,439 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 20439 cubic inches would be around 2.3 feet tall.

Recreational maths with 20439

20439 backwards is 93402
The number of decimal digits it has is: 5
The sum of 20439's digits is 18
More coming soon!

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The information we have on file for 20439 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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