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Automorphic number
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===Automorphic numbers in base ''b''=== All <math>b</math>-adic numbers are represented in base <math>b</math>, using AβZ to represent digit values 10 to 35. {| class="wikitable" ! <math>b</math> ! Prime factors of <math>b</math> ! Fixed points in <math>\mathbb{Z}/b\mathbb{Z}</math> of <math>f(x) = x^2</math> ! <math>b</math>-adic fixed points of <math>f(x) = x^2</math> ! Automorphic numbers in base <math>b</math> |----- | 6 || 2, 3 || 0, 1, 3, 4 || <math>\ldots 0000000000</math> <math>\ldots 0000000001</math> <math>\ldots 2221350213</math> <math>\ldots 3334205344</math> || 0, 1, 3, 4, 13, 44, 213, 344, 5344, 50213, 205344, 350213, 1350213, 4205344, 21350213, 34205344, 221350213, 334205344, 2221350213, 3334205344, ... |----- | 10 || 2, 5 || 0, 1, 5, 6 || <math>\ldots 0000000000</math> <math>\ldots 0000000001</math> <math>\ldots 8212890625</math> <math>\ldots 1787109376</math> || 0, 1, 5, 6, 25, 76, 376, 625, 9376, 90625, 109376, 890625, 2890625, 7109376, 12890625, 87109376, 212890625, 787109376, 1787109376, 8212890625, ... |----- | 12 || 2, 3 || 0, 1, 4, 9 || <math>\ldots 0000000000</math> <math>\ldots 0000000001</math> <math>\ldots 21\text{B}61\text{B}3854</math> <math>\ldots 9\text{A}05\text{A}08369</math> || 0, 1, 4, 9, 54, 69, 369, 854, 3854, 8369, B3854, 1B3854, A08369, 5A08369, 61B3854, B61B3854, 1B61B3854, A05A08369, 21B61B3854, 9A05A08369, ... |----- | 14 || 2, 7 || 0, 1, 7, 8 || <math>\ldots 0000000000</math> <math>\ldots 0000000001</math> <math>\ldots 7337\text{A}\text{A}0\text{C}37</math> <math>\ldots 6\text{A}\text{A}633\text{D}1\text{A}8</math> || 0, 1, 7, 8, 37, A8, 1A8, C37, D1A8, 3D1A8, A0C37, 33D1A8, AA0C37, 633D1A8, 7AA0C37, 37AA0C37, A633D1A8, 337AA0C37, AA633D1A8, 6AA633D1A8, 7337AA0C37, ... |----- | 15 || 3, 5 || 0, 1, 6, 10 || <math>\ldots 0000000000</math> <math>\ldots 0000000001</math> <math>\ldots 624\text{D}4\text{B}\text{D}\text{A}86</math> <math>\ldots 8\text{C}\text{A}1\text{A}3146\text{A}</math> || 0, 1, 6, A, 6A, 86, 46A, A86, 146A, DA86, 3146A, BDA86, 4BDA86, A3146A, 1A3146A, D4BDA86, 4D4BDA86, A1A3146A, 24D4BDA86, CA1A3146A, 624D4BDA86, 8CA1A3146A, ... |----- | 18 || 2, 3 || 0, 1, 9, 10 || ...000000 ...000001 ...4E1249 ...D3GFDA || |----- | 20 || 2, 5 || 0, 1, 5, 16 || ...000000 ...000001 ...1AB6B5 ...I98D8G || |----- | 21 || 3, 7 || 0, 1, 7, 15 || ...000000 ...000001 ...86H7G7 ...CE3D4F || |----- | 22 || 2, 11 || 0, 1, 11, 12 || ...000000 ...000001 ...8D185B ...D8KDGC || |----- | 24 || 2, 3 || 0, 1, 9, 16 || ...000000 ...000001 ...E4D0L9 ...9JAN2G || |----- | 26 || 2, 13 || 0, 1, 13, 14 || ...0000 ...0001 ...1G6D ...O9JE || |----- | 28 || 2, 7 || 0, 1, 8, 21 || ...0000 ...0001 ...AAQ8 ...HH1L || |----- | 30 || 2, 3, 5 || 0, 1, 6, 10, 15, 16, 21, 25 || ...0000 ...0001 ...B2J6 ...H13A ...1Q7F ...S3MG ...CSQL ...IRAP || |----- | 33 || 3, 11 || 0, 1, 12, 22 || ...0000 ...0001 ...1KPM ...VC7C || |----- | 34 || 2, 17 || 0, 1, 17, 18 || ...0000 ...0001 ...248H ...VTPI |----- | 35 || 5, 7 || 0, 1, 15, 21 || ...0000 ...0001 ...5MXL ...TC1F || |----- | 36 || 2, 3 || 0, 1, 9, 28 || ...0000 ...0001 ...DN29 ...MCXS || |}
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