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frugal n.  and  Smith n.

First numbers that belong to both sets:

729, 10201, 17496, 19683, 36481, 51529, 100489, 107811, 112995, 124609, 135594, 147987, 179375, 266875, 397953, 410881, 428415, 455877, 471875, 512435, 533871, 597849, 674041, 715563, 795070, 798255, 859375, 896809, 957906, 957999, 963487, 966289, 978125, 1024870, 1038361, 1039744, 1053568, 1059966, 1078656, 1086939, 1088128, 1107197, 1107968, 1126875, 1157248, 1158656, 1180288, 1181875, 1184896, 1190281, 1191808, 1277535, 1279395, 1285245, 1292288, 1293975, 1342976, 1358165, 1359585, 1364688, 1369375, 1386875, 1388745, 1429569, 1446486, 1449981, 1467357, 1470875, 1508864, 1542294, 1554486, 1569375, 1599375, 1625151, 1637888, 1639375, 1646875, 1656288, 1660928, 1663750, 1666494, 1687635, 1692738, 1697792, 1754375, 1789375, 1791875, 1822139, 1841875, 1852321, 1878125, 1879375, 1885625, 1894375, 1894389, 1897344, 1908736, 1918976, 1935744, 1947806, 1961875, 1979235, 1999375, 2042829, 2138886, 2153984, 2166784, 2188232, 2267919, 2269810, 2279375, 2313278, 2341448, 2357201, 2359773, 2366875, 2457875, 2497554, 2558454, 2629375, 2640239, 2671785, 2681875, 2699375, 2706875, 2737395, 2785915, 2840354, 2856875, 2869344, 2883584, 2884375, 2891875, 2892672, 2963385, 2971875, 2972123, 2980915, 3066875, 3186459, 3284375, 3284874, 3317679, 3339294, 3374592, 3396875, 3457647, 3474726, 3509375, 3515338, 3591875, 3599802, 3613801, 3657322, 3671973, 3690927, 3778407, 3790625, 3796875, 3835998, 3842559, 3857868, 3892729, 3974915, 3985625, 3995649, 4071615, 4071875, 4168556, 4189563, 4330561, 4368968, 4392287, 4564574, 4648833, 4734855, 4762880, 4774784, 4824470, 4857856, 4869515, 4898880, 4953555, 4984173, 5031049, 5055297, 5096875, 5158286, 5189751, 5196875, 5266875, 5268483, 5312886, 5431811, 5495889, 5497928, 5513680, 5527201, 5537792, 5582601, 5681826, 5742592, 5744109, 5767168, 5784615, 5854835, 5858973, 5869179, 5878656, 5885217, 5915835, 5944266, 5963776, 6046733, 6094848, 6096875, 6116894, 6171373, 6271811, 6545691, 6630625, 6676911, 6725897, 6756488, 6774784, 6862806, 6878125, 6886863, 6940625, 6941538, 6997335, 7000885, 7046875, 7059649, 7069696, 7077888, 7100885, 7221875, 7236705, 7239213, 7371015, 7446875, 7472979, 7669809, 7767453, 7806976, 7822899, 7856648, 7890625, 7896014, 7946761, 8043786, 8048569, 8213601, 8277795, 8301447, 8346875, 8361381, 8369649, 8395230, 8459375, 8506421, 8567329, 8857289, 8909375, 8957952, 8962935, 9086985, 9150625, 9156969, 9381826, 9447893, 9451875, 9482606, 9487206, 9584375, 9697158, 9699328, 9718750, 9753125.

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