111








































数表 — 整数


<<
110
111
112
113
114
115
116
117
118
119
>>



小写 一百一十一
大写 壹佰壹拾壹
质因数分解
3×37{displaystyle 3times 37}{displaystyle 3times 37}
罗马数字 CXI
二进制 1101111
八进制 157
十二进制 93
十六进制 6F

111是110與112之間的自然數。




目录






  • 1 數學


  • 2 科學上


  • 3 其它领域


  • 4 參見


  • 5 参考资料





數學



  • 第81個合數，正因數有1、3、37和111。前一個為110、下一個為112。

    質因數分解為3×37{displaystyle 3times 37}{displaystyle 3times 37}。


  • 第84個虧數，真因數和為41，虧度為70。前一個為110、下一個為113。

  • 第76個不尋常數，大於平方根的質因數為37。前一個為110、下一個為113。

  • 第36個半質數。前一個為106、下一個為115。

  • 第70個無平方數因數的數。前一個為110、下一個為113。

  • 第37個十进制的哈沙德數。前一個為110、下一個為112。

  • 第45個十进制的等數位數。前一個為109、下一個為112。

  • 循環單位


  • 回文數，1112=12321,1113=1367631也都是回文數。


  • 純位數。



科學上



  • 錀的原子序數


其它领域



  • 北111線


  • 紐西蘭救援服务的电话。

  • 公元111年或公元前111年。

  • 在小說魔戒中，佛羅多在111歲時離開夏爾。

  • 据美国亚太智库“2049研究所”的某位中国专家在《国防新闻》周刊中发表的文章中归纳了5年以来中国大陆选择1月11日作为发布新式武器研究成果的日子，并且认为1月11日为象征华人文化中的“111吉祥数”。新七天. 2012年. 



參見



  • 數表


  • 111 222 333 444 555 666 777 888 999

  • 111年

  • 1月11日



参考资料










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