COOKIE CONSENT: By continuing to browse my site you agree to its use of cookies. OK or Tell me more
Search a number
happy n.  and  lucky n.

First numbers that belong to both sets:

1, 7, 13, 31, 49, 79, 129, 133, 193, 219, 319, 331, 367, 391, 409, 487, 655, 673, 739, 931, 937, 1009, 1029, 1039, 1093, 1209, 1233, 1251, 1275, 1281, 1285, 1303, 1309, 1323, 1339, 1533, 1575, 1587, 1599, 1663, 1771, 1857, 1933, 1959, 1995, 2019, 2115, 2121, 2133, 2211, 2221, 2257, 2511, 2527, 2545, 2557, 2571, 2575, 2715, 2725, 2755, 2815, 2845, 2851, 2899, 2901, 3031, 3091, 3097, 3109, 3123, 3133, 3153, 3213, 3301, 3313, 3351, 3355, 3465, 3607, 3661, 3709, 3763, 3789, 3879, 3897, 3931, 4069, 4255, 4257, 4285, 4287, 4363, 4441, 4455, 4609, 4653, 4663, 4725, 4741, 4887, 5127, 5157, 5181, 5211, 5217, 5335, 5427, 5455, 5463, 5527, 5569, 5817, 5965, 5991, 5997, 6049, 6055, 6163, 6345, 6367, 6373, 6433, 6435, 6463, 6505, 6559, 6631, 6661, 6733, 6763, 6789, 7009, 7171, 7215, 7245, 7447, 7551, 7603, 7633, 7689, 7711, 8047, 8151, 8175, 8233, 8299, 8379, 8487, 8769, 8787, 8793, 8937, 9031, 9073, 9291, 9331, 9387, 9549, 9687, 9703, 9795, 9837, 9915, 9957, 10003, 10009, 10125, 10221, 10275, 10411, 10533, 10575, 10587, 10599, 10725, 10755, 10785, 10881, 10903, 11077, 11113, 11181, 11197, 11205, 11223, 11283, 11341, 11377, 11419, 11491, 11521, 11541, 11583, 11707, 11811, 11823, 11835, 11853, 12015, 12057, 12141, 12151, 12201, 12265, 12267, 12321, 12333, 12399, 12411, 12481, 12645, 12699, 12729, 12801, 12813, 12877, 12969, 13009, 13053, 13141, 13177, 13203, 13281, 13285, 13309, 13323, 13575, 13581, 13821, 13851, 13929, 14113, 14115, 14119, 14211, 14247, 14281, 14347, 14407, 14427, 14437, 14449, 14461, 14473, 14565, 14625, 15057, 15081, 15121, 15141, 15183, 15381, 15519, 15573, 15645, 15697, 15735, 16227, 16245, 16255, 16417, 16795, 16825, 16939, 16957, 17017, 17085, 17119, 17173, 17229, 17287, 17355, 17535, 17695, 17713, 17875, 17965, 18025, 18123.

Some larger examples :