20428840

20,428,840 is an even composite number composed of four prime numbers multiplied together.

What does the number 20428840 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 32 divisors.

20428840 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 20428840:

2³ × 5 × 157 × 3253

(2 × 2 × 2 × 5 × 157 × 3253)

See below for interesting mathematical facts about the number 20428840 from the Numbermatics database.

Names of 20428840

Cardinal: 20428840 can be written as Twenty million, four hundred twenty-eight thousand, eight hundred forty.

Scientific notation

Scientific notation: 2.042884 × 10⁷

Factors of 20428840

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 3417

Divisors of 20428840

Number of divisors d(n): 32
Complete list of divisors:
1 2 4 5 8 10 20 40 157 314 628 785 1256 1570 3140 3253 6280 6506 13012 16265 26024 32530 65060 130120 510721 1021442 2042884 2553605 4085768 5107210 10214420 20428840
Sum of all divisors σ(n): 46271880
Sum of proper divisors (its aliquot sum) s(n): 25843040
20428840 is an abundant number, because the sum of its proper divisors (25843040) is greater than itself. Its abundance is 5414200

Bases of 20428840

Binary: 1001101111011100000101000₂
Hexadecimal: 0x137B828
Base-36: C5UZS

Squares and roots of 20428840

20428840 squared (20428840²) is 417337503745600
20428840 cubed (20428840³) is 8525721090018263104000
The square root of 20428840 is 4519.8274303341
The cube root of 20428840 is 273.3681428335

Scales and comparisons

How big is 20428840?

20,428,840 seconds is equal to 33 weeks, 5 days, 10 hours, 40 minutes, 40 seconds.
To count from 1 to 20,428,840 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 20428840 cubic inches would be around 22.8 feet tall.

Recreational maths with 20428840

20428840 backwards is 04882402
The number of decimal digits it has is: 8
The sum of 20428840's digits is 28
More coming soon!

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The information we have on file for 20428840 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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