---
id: 5900f37d1000cf542c50fe8f
challengeType: 5
title: 'Problem 16: Power digit sum'
videoUrl: ''
localeTitle: 'Problema 16: soma do dígito de potência'
---

## Description
<section id="description"> 2 <sup>15</sup> = 32768 e a soma de seus dígitos é 3 + 2 + 7 + 6 + 8 = 26. Qual é a soma dos dígitos do <sup><code>exponent</code></sup> do número 2? </section>

## Instructions
<section id="instructions">
</section>

## Tests
<section id='tests'>

```yml
tests:
  - text: <code>powerDigitSum(15)</code> deve retornar 26.
    testString: 'assert.strictEqual(powerDigitSum(15), 26, "<code>powerDigitSum(15)</code> should return 26.");'
  - text: <code>powerDigitSum(128)</code> deve retornar 166.
    testString: 'assert.strictEqual(powerDigitSum(128), 166, "<code>powerDigitSum(128)</code> should return 166.");'
  - text: <code>powerDigitSum(1000)</code> deve retornar 1366.
    testString: 'assert.strictEqual(powerDigitSum(1000), 1366, "<code>powerDigitSum(1000)</code> should return 1366.");'

```

</section>

## Challenge Seed
<section id='challengeSeed'>

<div id='js-seed'>

```js
function powerDigitSum(exponent) {
  // Good luck!
  return true;
}

powerDigitSum(15);

```

</div>



</section>

## Solution
<section id='solution'>

```js
// solution required
```
</section>