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 <title>Open Problem Garden - Distribution and upper bound of mimic numbers - Comments</title>
 <link>http://openproblemgarden.org/op/distribution_and_upper_bound_of_mimic_numbers</link>
 <description>Comments for &quot;Distribution and upper bound of mimic numbers&quot;</description>
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 <title>Distribution and upper bound of mimic numbers</title>
 <link>http://openproblemgarden.org/op/distribution_and_upper_bound_of_mimic_numbers</link>
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    Author(s):
        &lt;a href=&quot;/category/bhattacharyya_m&quot;&gt;Bhattacharyya&lt;/a&gt;&amp;nbsp;&amp;nbsp;
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    Subject:
        &lt;a href=&quot;/category/number_theory_0&quot;&gt;Number Theory&lt;/a&gt; » &lt;a href=&quot;/category/analytic_number_theory&quot;&gt;Analytic N.T.&lt;/a&gt;&amp;nbsp;&amp;nbsp;
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        &lt;div class=&quot;envtheorem&quot;&gt;&lt;b&gt;Problem&lt;/b&gt;&amp;nbsp;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Let the notation &lt;img class=&quot;teximage&quot; src=&quot;/files/tex/591a9ef8c25f8887543fd58cd30ce4479d07de6c.png&quot; alt=&quot;$ a|b $&quot; /&gt; denote &#039;&#039;&lt;img class=&quot;teximage&quot; src=&quot;/files/tex/b1d91efbd5571a84788303f1137fb33fe82c43e2.png&quot; alt=&quot;$ a $&quot; /&gt; divides &lt;img class=&quot;teximage&quot; src=&quot;/files/tex/b94226d9717591da8122ae1467eda72a0f35d810.png&quot; alt=&quot;$ b $&quot; /&gt;&#039;&#039;. The mimic function in number theory is defined as follows [1].&lt;/p&gt;
&lt;div class=&quot;envsimple&quot;&gt;&lt;b&gt;Definition&lt;/b&gt;&amp;nbsp;&amp;nbsp; For any positive integer &lt;img class=&quot;teximage&quot; src=&quot;/files/tex/b522b53f963c91b601b32275aea4d249b2dd8264.png&quot; alt=&quot;$ \mathcal{N} = \sum_{i=0}^{n}\mathcal{X}_{i}\mathcal{M}^{i} $&quot; /&gt; divisible by &lt;img class=&quot;teximage&quot; src=&quot;/files/tex/c671ad4c8feaa23e9e853771cb321d1c25623365.png&quot; alt=&quot;$ \mathcal{D} $&quot; /&gt;, the mimic function, &lt;img class=&quot;teximage&quot; src=&quot;/files/tex/ec9b08e3025c8c48821c63cc16cb7f5233335280.png&quot; alt=&quot;$ f(\mathcal{D} | \mathcal{N}) $&quot; /&gt;, is given by,&lt;/p&gt;
&lt;p&gt;&lt;img class=&quot;teximage&quot; src=&quot;/files/tex/15aa8b98b76719c624cca935234f3395d4e74198.png&quot; alt=&quot;$$ f(\mathcal{D} | \mathcal{N}) = \sum_{i=0}^{n}\mathcal{X}_{i}(\mathcal{M}-\mathcal{D})^{i} $$&quot; /&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;p&gt;By using this definition of mimic function, the mimic number of any non-prime integer is defined as follows [1].&lt;/p&gt;
&lt;div class=&quot;envsimple&quot;&gt;&lt;b&gt;Definition&lt;/b&gt;&amp;nbsp;&amp;nbsp; The number &lt;img class=&quot;teximage&quot; src=&quot;/files/tex/ddaab6dc091926fb1da549195000491cefae85c1.png&quot; alt=&quot;$ m $&quot; /&gt; is defined to be the mimic number of any positive integer &lt;img class=&quot;teximage&quot; src=&quot;/files/tex/b522b53f963c91b601b32275aea4d249b2dd8264.png&quot; alt=&quot;$ \mathcal{N} = \sum_{i=0}^{n}\mathcal{X}_{i}\mathcal{M}^{i} $&quot; /&gt;, with respect to &lt;img class=&quot;teximage&quot; src=&quot;/files/tex/c671ad4c8feaa23e9e853771cb321d1c25623365.png&quot; alt=&quot;$ \mathcal{D} $&quot; /&gt;, for the minimum value of which &lt;img class=&quot;teximage&quot; src=&quot;/files/tex/972f697a9ebf623423c169767761bfeef6d476e7.png&quot; alt=&quot;$ f^{m}(\mathcal{D} | \mathcal{N}) = \mathcal{D} $&quot; /&gt;. &lt;/div&gt;
&lt;p&gt;Given these two definitions and a positive integer &lt;img class=&quot;teximage&quot; src=&quot;/files/tex/c671ad4c8feaa23e9e853771cb321d1c25623365.png&quot; alt=&quot;$ \mathcal{D} $&quot; /&gt;, find the distribution of mimic numbers of those numbers divisible by &lt;img class=&quot;teximage&quot; src=&quot;/files/tex/c671ad4c8feaa23e9e853771cb321d1c25623365.png&quot; alt=&quot;$ \mathcal{D} $&quot; /&gt;.&lt;/p&gt;
&lt;p&gt;Again, find whether there is an upper bound of mimic numbers for a set of numbers divisible by any fixed positive integer &lt;img class=&quot;teximage&quot; src=&quot;/files/tex/c671ad4c8feaa23e9e853771cb321d1c25623365.png&quot; alt=&quot;$ \mathcal{D} $&quot; /&gt;. &lt;/div&gt;

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 <category domain="http://openproblemgarden.org/category/bhattacharyya_m">Bhattacharyya, M.</category>
 <category domain="http://openproblemgarden.org/category/divisibility">Divisibility</category>
 <category domain="http://openproblemgarden.org/category/mimic_function">mimic function</category>
 <category domain="http://openproblemgarden.org/category/mimic_number">mimic number</category>
 <category domain="http://openproblemgarden.org/category/number_theory_0">Number Theory</category>
 <category domain="http://openproblemgarden.org/category/analytic_number_theory">Analytic Number Theory</category>
 <comments>http://openproblemgarden.org/op/distribution_and_upper_bound_of_mimic_numbers#comment</comments>
 <pubDate>Sat, 20 Jun 2009 10:50:40 +0200</pubDate>
 <dc:creator>facility_cttb@indiatimes.com</dc:creator>
 <guid isPermaLink="false">36961 at http://openproblemgarden.org</guid>
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