21055842

21,055,842 is an even composite number composed of three prime numbers multiplied together.

What does the number 21055842 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 16 divisors.

21055842 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 21055842:

2 × 3³ × 389923

(2 × 3 × 3 × 3 × 389923)

See below for interesting mathematical facts about the number 21055842 from the Numbermatics database.

Names of 21055842

Cardinal: 21055842 can be written as Twenty-one million, fifty-five thousand, eight hundred forty-two.

Scientific notation

Scientific notation: 2.1055842 × 10⁷

Factors of 21055842

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 389928

Divisors of 21055842

Number of divisors d(n): 16
Complete list of divisors:
1 2 3 6 9 18 27 54 389923 779846 1169769 2339538 3509307 7018614 10527921 21055842
Sum of all divisors σ(n): 46790880
Sum of proper divisors (its aliquot sum) s(n): 25735038
21055842 is an abundant number, because the sum of its proper divisors (25735038) is greater than itself. Its abundance is 4679196

Bases of 21055842

Binary: 1010000010100100101100010₂
Hexadecimal: 0x1414962
Base-36: CJASI

Squares and roots of 21055842

21055842 squared (21055842²) is 443348482328964
21055842 cubed (21055842³) is 9335075594858458007688
The square root of 21055842 is 4588.6645115981
The cube root of 21055842 is 276.1367469809

Scales and comparisons

How big is 21055842?

21,055,842 seconds is equal to 34 weeks, 5 days, 16 hours, 50 minutes, 42 seconds.
To count from 1 to 21,055,842 would take you about thirteen 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 21055842 cubic inches would be around 23 feet tall.

Recreational maths with 21055842

21055842 backwards is 24855012
21055842 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21055842's digits is 27
More coming soon!

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The information we have on file for 21055842 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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