https://github.com/halilozel1903/kotlinperfectnumber

This simple finds perfect numbers in the Kotlin. 6️⃣ 👹 💫
https://github.com/halilozel1903/kotlinperfectnumber

kotlin kotlin-android kotlin-beginner kotlin-beginners kotlin-language kotlin-sample kotlin-sample-app kotlin-samples kotlin-tutorial kotlin-tutorials

Last synced: about 2 months ago
JSON representation

This simple finds perfect numbers in the Kotlin. 6️⃣ 👹 💫

• Host: GitHub
• URL: https://github.com/halilozel1903/kotlinperfectnumber
• Owner: halilozel1903
• Created: 2023-04-07T19:11:30.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2023-12-02T14:08:35.000Z (about 1 year ago)
• Last Synced: 2024-05-02T02:10:08.258Z (8 months ago)
• Topics: kotlin, kotlin-android, kotlin-beginner, kotlin-beginners, kotlin-language, kotlin-sample, kotlin-sample-app, kotlin-samples, kotlin-tutorial, kotlin-tutorials
• Language: Kotlin
• Homepage: https://halilozel1903.medium.com/membership
• Size: 9.77 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
## Kotlin Perfect Number 6️⃣ 🌼 👹

![Kotlin Perfect Number](https://miro.medium.com/v2/resize:fit:4800/format:webp/1*TsSJhwB-3SJ6Df2CV_E7bQ.jpeg)

A `perfect` number is a positive integer that is equal to the sum of its proper divisors (excluding itself). For example, `6` is a perfect number because its proper divisors (1, 2, 3) add up to 6.

Here’s an example `Kotlin` program that finds perfect numbers:

```kotlin

fun main() {

    (1..1000).filter { isPerfectNumber(it) }.forEach { println("$it is a perfect number") }

}

fun isPerfectNumber(number: Int): Boolean {

    return (1..number / 2).filter { number % it == 0 }.sum() == number

}

```

This code defines two functions: `main()` and `isPerfectNumber()`. The `main()` function is responsible for printing all perfect numbers from 1 to 1000. A perfect number is a positive integer that is equal to the sum of its positive divisors. For example, 6 is a perfect number because 1 + 2 + 3 + 6 = 12.

The `isPerfectNumber()` function takes an integer number as input and returns `true` if number is a perfect number, and `false` otherwise. The function calculates the sum of the divisors of number and checks if it is equal to number.

When we run the program, it will output all the `perfect` numbers up to the limit we set:

```kotlin

6 is a perfect number

28 is a perfect number

496 is a perfect number

```

## Donation 💸

If this project help 💁 you, Can you give me a cup of coffee? ☕

[!["Buy Me A Coffee"](https://www.buymeacoffee.com/assets/img/custom_images/orange_img.png)](https://www.buymeacoffee.com/halilozel1903)

## License ℹ️

```

MIT License

Copyright (c) 2023 Halil OZEL

Permission is hereby granted, free of charge, to any person obtaining a copy

of this software and associated documentation files (the "Software"), to deal

in the Software without restriction, including without limitation the rights

to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

copies of the Software, and to permit persons to whom the Software is

furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all

copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

SOFTWARE.

```