Search a number
practical n.  and  untouchable n.

First numbers that belong to both sets:

2, 88, 96, 120, 162, 210, 216, 276, 288, 304, 306, 324, 336, 342, 408, 448, 520, 540, 552, 576, 612, 624, 714, 726, 750, 756, 768, 784, 792, 896, 936, 966, 1044, 1080, 1116, 1128, 1134, 1148, 1160, 1200, 1248, 1254, 1272, 1288, 1296, 1312, 1316, 1326, 1332, 1360, 1380, 1404, 1476, 1566, 1596, 1632, 1650, 1680, 1692, 1716, 1728, 1776, 1806, 1820, 1830, 1840, 1860, 1888, 1920, 1944, 1960, 2010, 2024, 2048, 2052, 2058, 2120, 2128, 2178, 2190, 2196, 2226, 2232, 2262, 2304, 2322, 2376, 2408, 2430, 2432, 2436, 2464, 2484, 2496, 2500, 2576, 2600, 2628, 2640, 2704, 2736, 2760, 2784, 2808, 2850, 2856, 2944, 2952, 2968, 2982, 2992, 3008, 3036, 3060, 3072, 3078, 3102, 3132, 3136, 3186, 3198, 3234, 3276, 3312, 3318, 3328, 3366, 3384, 3388, 3400, 3402, 3420, 3432, 3486, 3504, 3510, 3564, 3588, 3600, 3630, 3648, 3666, 3738, 3744, 3752, 3760, 3792, 3808, 3816, 3828, 3872, 3876, 3888, 3900, 3904, 3936, 3942, 3960, 4026, 4032, 4048, 4056, 4088, 4104, 4116, 4224, 4248, 4312, 4320, 4356, 4368, 4380, 4416, 4472, 4480, 4488, 4500, 4512, 4648, 4662, 4672, 4686, 4700, 4740, 4758, 4770, 4830, 4840, 4860, 4884, 4896, 4914, 4928, 4956, 4980, 4984, 4998, 5016, 5070, 5096, 5136, 5152, 5160, 5184, 5202, 5208, 5214, 5226, 5250, 5256, 5292, 5320, 5328, 5346, 5360, 5376, 5456, 5488, 5490, 5512, 5538, 5544, 5568, 5610, 5616, 5664, 5680, 5700, 5724, 5760, 5768, 5778, 5796, 5832, 5886, 5896, 5916, 5920, 5922, 5936, 5952, 6000, 6006, 6060, 6084, 6120, 6160, 6180, 6188, 6216, 6240, 6372, 6384, 6396, 6402, 6420, 6460, 6480, 6498, 6510, 6528, 6588, 6592, 6624, 6642, 6688, 6708, 6776, 6800, 6816, 6848, 6880, 6966, 6996, 7050, 7056, 7062, 7068, 7140, 7168.

Some larger examples :