21755142

21,755,142 is an even composite number composed of three prime numbers multiplied together.

What does the number 21755142 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 20 divisors.

21755142 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty divisors.

Prime factorization of 21755142:

2 × 3⁴ × 134291

(2 × 3 × 3 × 3 × 3 × 134291)

See below for interesting mathematical facts about the number 21755142 from the Numbermatics database.

Names of 21755142

Cardinal: 21755142 can be written as Twenty-one million, seven hundred fifty-five thousand, one hundred forty-two.

Scientific notation

Scientific notation: 2.1755142 × 10⁷

Factors of 21755142

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 6
Sum of prime factors: 134296

Divisors of 21755142

Number of divisors d(n): 20
Complete list of divisors:
1 2 3 6 9 18 27 54 81 162 134291 268582 402873 805746 1208619 2417238 3625857 7251714 10877571 21755142
Sum of all divisors σ(n): 48747996
Sum of proper divisors (its aliquot sum) s(n): 26992854
21755142 is an abundant number, because the sum of its proper divisors (26992854) is greater than itself. Its abundance is 5237712

Bases of 21755142

Binary: 1010010111111010100000110₂
Hexadecimal: 0x14BF506
Base-36: CYADI

Squares and roots of 21755142

21755142 squared (21755142²) is 473286203440164
21755142 cubed (21755142³) is 10296408562481656323288
The square root of 21755142 is 4664.2407742313
The cube root of 21755142 is 279.1605042475

Scales and comparisons

How big is 21755142?

21,755,142 seconds is equal to 35 weeks, 6 days, 19 hours, 5 minutes, 42 seconds.
To count from 1 to 21,755,142 would take you about six days!

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 21755142 cubic inches would be around 23.3 feet tall.

Recreational maths with 21755142

21755142 backwards is 24155712
21755142 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21755142's digits is 27
More coming soon!

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The information we have on file for 21755142 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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