Search a number
tau n.  and  vampire n.

First numbers that belong to both sets:

1260, 120600, 156240, 296320, 315900, 458640, 567648, 629680, 673920, 738468, 809964, 10052064, 10081260, 10165680, 10219680, 10507500, 10558368, 10821600, 10886400, 11059164, 11187360, 11272356, 11632896, 11647800, 11772540, 11857500, 12006000, 12195760, 12276544, 12308436, 12328960, 12452080, 12495280, 12504960, 12536320, 12645360, 12717396, 12752640, 12762000, 12853840, 12943548, 12955000, 12966480, 13394160, 13563760, 13573980, 13684320, 13794480, 14027328, 14088672, 14245632, 14364720, 14620720, 14642208, 14652000, 14653728, 14676228, 14936400, 15063264, 15246000, 15450228, 15788416, 15819300, 16265088, 16272000, 16276320, 16398144, 16525840, 16737520, 16757280, 16776720, 16947328, 17026240, 17278960, 17392500, 17482000, 17682480, 17932500, 18239760, 18317520, 18629208, 19798020, 19836324, 19847025, 20367360, 20646738, 20665840, 20917840, 21430656, 21469360, 21479004, 21518640, 21542400, 21826548, 21829356, 22188564, 22352400, 22458640, 22736880, 22744800, 22786560, 23067760, 23435892, 23446912, 23607360, 23674428, 23829376, 24504880, 24528708, 24789636, 24797088, 25105000, 25296480, 25367440, 25436880, 25510000, 25791120, 25988080, 26373600, 26432640, 26642560, 26645760, 26796384, 27034560, 27332640, 27985360, 28137856, 28237360, 28434960, 29158960, 29163744, 29354368, 30792384, 31659520, 31775292, 31923468, 32294880, 32329440, 32679360, 33132960, 33475680, 34096428, 34117920, 34192764, 34665696, 34672500, 34695760, 34767040, 34856640, 36138960, 36275004, 36478336, 36887040, 36994320, 37515600, 37675008, 37699200, 38388240, 39057840, 39254400, 39288240, 39681040, 40275648, 40839840, 41539680, 41557500, 41738368, 42756880, 43461972, 44676000, 44751600, 44909680, 44958960, 45360720, 45476064, 45606528, 45847296, 45917028, 46267200, 46271052, 46483920, 46786432, 46948720, 47264080, 47794176, 48095280, 48350592, 48670960, 49027680, 49051264, 49289760, 49293756, 49685040, 49805280, 49867236, 51671920, 51749280, 51936880, 52579840, 52794468, 53596800, 53644864, 53907840, 54229680, 54276880, 54419328, 54861372, 55612480, 56129076, 56295000, 56568960, 56795904, 56871360, 57061840, 57761280, 58177408, 58468720, 58661820, 59446836, 60219360, 60635920, 61271964, 61496352, 61612992, 61787520, 63787648, 67692960, 67898052, 68128384, 68807520, 68877760, 69271200, 69413760, 69593728, 69724800, 69738804, 71049600, 75818664, 76798480, 77969952, 79813152, 79816608, 79851136, 86987808, 89901900, 89904672, 94729680, 96399072.