20402740

20,402,740 is an even composite number composed of three prime numbers multiplied together.

What does the number 20402740 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

20402740 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 20402740:

2² × 5 × 1020137

(2 × 2 × 5 × 1020137)

See below for interesting mathematical facts about the number 20402740 from the Numbermatics database.

Names of 20402740

Cardinal: 20402740 can be written as Twenty million, four hundred two thousand, seven hundred forty.

Scientific notation

Scientific notation: 2.040274 × 10⁷

Factors of 20402740

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 1020144

Divisors of 20402740

Number of divisors d(n): 12
Complete list of divisors:
1 2 4 5 10 20 1020137 2040274 4080548 5100685 10201370 20402740
Sum of all divisors σ(n): 42845796
Sum of proper divisors (its aliquot sum) s(n): 22443056
20402740 is an abundant number, because the sum of its proper divisors (22443056) is greater than itself. Its abundance is 2040316

Bases of 20402740

Binary: 1001101110101001000110100₂
Hexadecimal: 0x1375234
Base-36: C5AUS

Squares and roots of 20402740

20402740 squared (20402740²) is 416271799507600
20402740 cubed (20402740³) is 8493085294685690824000
The square root of 20402740 is 4516.9392291685
The cube root of 20402740 is 273.2516743309

Scales and comparisons

How big is 20402740?

20,402,740 seconds is equal to 33 weeks, 5 days, 3 hours, 25 minutes, 40 seconds.
To count from 1 to 20,402,740 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 20402740 cubic inches would be around 22.8 feet tall.

Recreational maths with 20402740

20402740 backwards is 04720402
The number of decimal digits it has is: 8
The sum of 20402740's digits is 19
More coming soon!

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The information we have on file for 20402740 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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