Search a number
equidigital n.  and  Ulam n.

First numbers that belong to both sets:

1, 2, 3, 11, 13, 16, 47, 53, 97, 106, 131, 145, 155, 175, 177, 189, 197, 219, 241, 409, 431, 485, 497, 607, 673, 739, 751, 983, 991, 1018, 1025, 1037, 1079, 1081, 1101, 1103, 1125, 1157, 1167, 1169, 1186, 1191, 1257, 1296, 1335, 1355, 1377, 1387, 1389, 1431, 1433, 1465, 1472, 1489, 1509, 1514, 1531, 1538, 1553, 1594, 1641, 1643, 1646, 1682, 1707, 1709, 1721, 1765, 1814, 1856, 1858, 1941, 1944, 1966, 1985, 2095, 2117, 2371, 2393, 2447, 2481, 2511, 2513, 2581, 2589, 2633, 2662, 2721, 2723, 2787, 2789, 2811, 2816, 2833, 2897, 2916, 3031, 3041, 3065, 3085, 3109, 3205, 3217, 3239, 3305, 3371, 3373, 3395, 3415, 3456, 3483, 3527, 3547, 3593, 3625, 3649, 3671, 3691, 3698, 4057, 4153, 4187, 4211, 4297, 4363, 4409, 4451, 4453, 4517, 4519, 4729, 4903, 4969, 5059, 5081, 5184, 5531, 5663, 5873, 5875, 6029, 6481, 6569, 6723, 6784, 6833, 6911, 7043, 7219, 7297, 7424, 7459, 7537, 7559, 7583, 7603, 7691, 7727, 7776, 8011, 8101, 8167, 8539, 8573, 8969, 8971, 9013, 9137, 9311, 9377, 9511, 9619, 9643, 9721, 9743, 9851, 9941, 9963, 10085, 10173, 10247, 10249, 10271, 10288, 10349, 10366, 10369, 10391, 10393, 10415, 10457, 10459, 10501, 10503, 10523, 10525, 10537, 10547, 10567, 10606, 10655, 10657, 10677, 10679, 10691, 10694, 10713, 10757, 10779, 10831, 10862, 10865, 10909, 10911, 10931, 10975, 10977, 10997, 10999, 11085, 11087, 11107, 11109, 11146, 11168, 11195, 11197, 11217, 11219, 11236, 11273, 11278, 11302, 11319, 11344, 11366, 11434, 11456, 11498, 11603, 11625, 11647, 11735, 11737, 11757, 11774, 11779, 11967, 11969, 12035, 12055, 12057, 12074, 12118, 12143, 12145, 12187, 12245, 12250, 12365, 12443, 12526, 12602, 12622, 12641, 12658, 12707, 12751, 12763, 12785, 12854, 12873, 12895, 12898, 12917, 12961, 13047, 13049, 13069, 13071.

Some larger examples :