686142

686,142 is an even composite number composed of three prime numbers multiplied together.

What does the number 686142 look like?

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

686142 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 686142:

2 × 3² × 38119

(2 × 3 × 3 × 38119)

See below for interesting mathematical facts about the number 686142 from the Numbermatics database.

Names of 686142

Cardinal: 686142 can be written as Six hundred eighty-six thousand, one hundred forty-two.

Scientific notation

Scientific notation: 6.86142 × 10⁵

Factors of 686142

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 38124

Divisors of 686142

Number of divisors d(n): 12
Complete list of divisors:
1 2 3 6 9 18 38119 76238 114357 228714 343071 686142
Sum of all divisors σ(n): 1486680
Sum of proper divisors (its aliquot sum) s(n): 800538
686142 is an abundant number, because the sum of its proper divisors (800538) is greater than itself. Its abundance is 114396

Bases of 686142

Binary: 10100111100000111110₂
Hexadecimal: 0xA783E
Base-36: EPFI

Squares and roots of 686142

686142 squared (686142²) is 470790844164
686142 cubed (686142³) is 323029371396375288
The square root of 686142 is 828.3368879871
The cube root of 686142 is 88.2005584057

Scales and comparisons

How big is 686142?

686,142 seconds is equal to 1 week, 22 hours, 35 minutes, 42 seconds.
To count from 1 to 686,142 would take you about twenty-two 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 686142 cubic inches would be around 7.4 feet tall.

Recreational maths with 686142

686142 backwards is 241686
The number of decimal digits it has is: 6
The sum of 686142's digits is 27
More coming soon!

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The information we have on file for 686142 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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