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Description

tab: English
 
<p>Given an integer <code>columnNumber</code>, return <em>its corresponding column title as it appears in an Excel sheet</em>.</p>
 
<p>For example:</p>
 
<pre>
A -&gt; 1
B -&gt; 2
C -&gt; 3
...
Z -&gt; 26
AA -&gt; 27
AB -&gt; 28 
...
</pre>
 
<p>&nbsp;</p>
<p><strong class="example">Example 1:</strong></p>
 
<pre>
<strong>Input:</strong> columnNumber = 1
<strong>Output:</strong> &quot;A&quot;
</pre>
 
<p><strong class="example">Example 2:</strong></p>
 
<pre>
<strong>Input:</strong> columnNumber = 28
<strong>Output:</strong> &quot;AB&quot;
</pre>
 
<p><strong class="example">Example 3:</strong></p>
 
<pre>
<strong>Input:</strong> columnNumber = 701
<strong>Output:</strong> &quot;ZY&quot;
</pre>
 
<p>&nbsp;</p>
<p><strong>Constraints:</strong></p>
 
<ul>
	<li><code>1 &lt;= columnNumber &lt;= 2<sup>31</sup> - 1</code></li>
</ul>
 
 
 
---
 
[submissions](https://leetcode.com/problems/excel-sheet-column-title/submissions/) | [solutions](https://leetcode.com/problems/excel-sheet-column-title/solutions/)
 
 
tab: 中文
 
<p>给你一个整数 <code>columnNumber</code> ,返回它在 Excel 表中相对应的列名称。</p>
 
<p>例如:</p>
 
<pre>
A -> 1
B -> 2
C -> 3
...
Z -> 26
AA -> 27
AB -> 28 
...
</pre>
 
<p> </p>
 
<p><strong>示例 1:</strong></p>
 
<pre>
<strong>输入:</strong>columnNumber = 1
<strong>输出:</strong>"A"
</pre>
 
<p><strong>示例 2:</strong></p>
 
<pre>
<strong>输入:</strong>columnNumber = 28
<strong>输出:</strong>"AB"
</pre>
 
<p><strong>示例 3:</strong></p>
 
<pre>
<strong>输入:</strong>columnNumber = 701
<strong>输出:</strong>"ZY"
</pre>
 
<p><strong>示例 4:</strong></p>
 
<pre>
<strong>输入:</strong>columnNumber = 2147483647
<strong>输出:</strong>"FXSHRXW"
</pre>
 
<p> </p>
 
<p><strong>提示:</strong></p>
 
<ul>
	<li><code>1 <= columnNumber <= 2<sup>31</sup> - 1</code></li>
</ul>
 
 
 
---
 
[提交记录](https://leetcode.cn/problems/excel-sheet-column-title/submissions/) | [题解](https://leetcode.cn/problems/excel-sheet-column-title/solution/)
 
 

Solutions & Notes

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