20400309

20,400,309 is an odd composite number composed of two prime numbers multiplied together.

What does the number 20400309 look like?

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

20400309 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 20400309:

3³ × 755567

(3 × 3 × 3 × 755567)

See below for interesting mathematical facts about the number 20400309 from the Numbermatics database.

Names of 20400309

Cardinal: 20400309 can be written as Twenty million, four hundred thousand, three hundred nine.

Scientific notation

Scientific notation: 2.0400309 × 10⁷

Factors of 20400309

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 4
Sum of prime factors: 755570

Divisors of 20400309

Number of divisors d(n): 8
Complete list of divisors:
1 3 9 27 755567 2266701 6800103 20400309
Sum of all divisors σ(n): 30222720
Sum of proper divisors (its aliquot sum) s(n): 9822411
20400309 is a deficient number, because the sum of its proper divisors (9822411) is less than itself. Its deficiency is 10577898

Bases of 20400309

Binary: 1001101110100100010110101₂
Hexadecimal: 0x13748B5
Base-36: C58Z9

Squares and roots of 20400309

20400309 squared (20400309²) is 416172607295481
20400309 cubed (20400309³) is 8490049786163466703629
The square root of 20400309 is 4516.6701229999
The cube root of 20400309 is 273.2408211937

Scales and comparisons

How big is 20400309?

20,400,309 seconds is equal to 33 weeks, 5 days, 2 hours, 45 minutes, 9 seconds.
To count from 1 to 20,400,309 would take you about fifty weeks!

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 20400309 cubic inches would be around 22.8 feet tall.

Recreational maths with 20400309

20400309 backwards is 90300402
The number of decimal digits it has is: 8
The sum of 20400309's digits is 18
More coming soon!

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The information we have on file for 20400309 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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