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225

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225
← 224 225 226 →
数表整数

<<  220 221 222 223 224 225 226 227 228 229 >>

命名
小寫二百二十五
大寫貳佰貳拾伍
序數詞第二百二十五
two hundred and twenty-fifth
識別
種類整數
性質
質因數分解
表示方式
225
算筹
希腊数字ΣΚΕ´
羅馬數字CCXXV
泰文数字๒๒๕在维基数据编辑
孟加拉数字২২৫在维基数据编辑
印度數字२२५在维基数据编辑
摩尔斯电码· · − − − · · − − − · · · · ·在维基数据编辑
高棉數字២២៥在维基数据编辑
二进制11100001(2)
三进制22100(3)
四进制3201(4)
五进制1400(5)
八进制341(8)
十二进制169(12)
十六进制E1(16)

225是一個在224226之間的自然數

數學性質

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  • 合數正因數有1、3、5、9、15、25、45、75和225。
    質因數分解
  • 虧數真因數和為178,虧度為47。
  • 第15個平方數,為15的平方。前一個為196、下一個為256
  • 第69個十进制哈沙德數。前一個為224、下一個為228
  • 十进制奢侈數
    • 八角型數
    • 中心八邊形數
  • 三角函數
  • = 0.004…(循環下劃線)

其他領域

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参见

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{{bottomLinkPreText}} {{bottomLinkText}}
225
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