135681

135,681 is an odd composite number composed of four prime numbers multiplied together.

What does the number 135681 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

135681 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 135681:

3 × 7² × 13 × 71

(3 × 7 × 7 × 13 × 71)

See below for interesting mathematical facts about the number 135681 from the Numbermatics database.

Names of 135681

Cardinal: 135681 can be written as One hundred thirty-five thousand, six hundred eighty-one.

Scientific notation

Scientific notation: 1.35681 × 10⁵

Factors of 135681

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 94

Divisors of 135681

Number of divisors d(n): 24
Complete list of divisors:
1 3 7 13 21 39 49 71 91 147 213 273 497 637 923 1491 1911 2769 3479 6461 10437 19383 45227 135681
Sum of all divisors σ(n): 229824
Sum of proper divisors (its aliquot sum) s(n): 94143
135681 is a deficient number, because the sum of its proper divisors (94143) is less than itself. Its deficiency is 41538

Bases of 135681

Binary: 100001001000000001₂
Hexadecimal: 0x21201
Base-36: 2WOX

Squares and roots of 135681

135681 squared (135681²) is 18409333761
135681 cubed (135681³) is 2497796814026241
The square root of 135681 is 368.3490192739
The cube root of 135681 is 51.3853925495

Scales and comparisons

How big is 135681?

135,681 seconds is equal to 1 day, 13 hours, 41 minutes, 21 seconds.
To count from 1 to 135,681 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 135681 cubic inches would be around 4.3 feet tall.

Recreational maths with 135681

135681 backwards is 186531
The number of decimal digits it has is: 6
The sum of 135681's digits is 24
More coming soon!

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The information we have on file for 135681 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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