Search a number
cubic n.  and  square n.

First numbers that belong to both sets:

1, 64, 729, 4096, 15625, 46656, 117649, 262144, 531441, 1000000, 1771561, 2985984, 4826809, 7529536, 11390625, 16777216, 24137569, 34012224, 47045881, 64000000, 85766121, 113379904, 148035889, 191102976, 244140625, 308915776, 387420489, 481890304, 594823321, 729000000, 887503681, 1073741824, 1291467969, 1544804416, 1838265625, 2176782336, 2565726409, 3010936384, 3518743761, 4096000000, 4750104241, 5489031744, 6321363049, 7256313856, 8303765625, 9474296896, 10779215329, 12230590464, 13841287201, 15625000000, 17596287801, 19770609664, 22164361129, 24794911296, 27680640625, 30840979456, 34296447249, 38068692544, 42180533641, 46656000000, 51520374361, 56800235584, 62523502209, 68719476736, 75418890625, 82653950016, 90458382169, 98867482624, 107918163081, 117649000000, 128100283921, 139314069504, 151334226289, 164206490176, 177978515625, 192699928576, 208422380089, 225199600704, 243087455521, 262144000000, 282429536481, 304006671424, 326940373369, 351298031616, 377149515625, 404567235136, 433626201009, 464404086784, 496981290961, 531441000000, 567869252041, 606355001344, 646990183449, 689869781056, 735091890625, 782757789696, 832972004929, 885842380864, 941480149401, 1000000000000, 1061520150601, 1126162419264, 1194052296529, 1265319018496, 1340095640625, 1418519112256, 1500730351849, 1586874322944, 1677100110841, 1771561000000, 1870414552161, 1973822685184, 2081951752609, 2194972623936, 2313060765625, 2436396322816, 2565164201769, 2699554153024, 2839760855281, 2985984000000, 3138428376721, 3297303959104, 3462825991689, 3635215077376, 3814697265625, 4001504141376, 4195872914689, 4398046511104, 4608273662721, 4826809000000, 5053913144281, 5289852801024, 5534900853769, 5789336458816, 6053445140625, 6327518887936, 6611856250609, 6906762437184, 7212549413161, 7529536000000, 7858047974841, 8198418170944, 8550986578849, 8916100448256, 9294114390625, 9685390482496, 10090298369529, 10509215371264, 10942526586601, 11390625000000, 11853911588401, 12332795428864, 12827693806929, 13339032325696, 13867245015625, 14412774445056, 14976071831449, 15557597153344, 16157819263041, 16777216000000, 17416274304961, 18075490334784, 18755369578009, 19456426971136, 20179187015625, 20924183895616, 21691961596369, 22483074023424, 23298085122481, 24137569000000, 25002110044521, 25892303048704, 26808753332089, 27752076864576, 28722900390625, 29721861554176, 30749609024289, 31806802621504, 32894113444921, 34012224000000, 35161828327081, 36343632130624, 37558352909169, 38806720086016, 40089475140625, 41407371740736, 42761175875209, 44151665987584, 45579633110361, 47045881000000, 48551226272641, 50096498540544, 51682540549249, 53310208315456, 54980371265625, 56693912375296, 58451728309129, 60254729561664, 62103840598801, 64000000000000, 65944160601201, 67937289638464, 69980368892329, 72074394832896, 74220378765625, 76419346977856, 78672340886049, 80980417183744, 83344647990241, 85766121000000, 88245939632761, 90785223184384, 93385106978409, 96046742518336, 98771297640625, 101559956668416, 104413920565969, 107334407093824, 110322650964681, 113379904000000, 116507435287321, 119706531338304, 122978496247489, 126324651851776, 129746337890625, 133244912166976, 136821750708889, 140478247931904, 144215816802121, 148035889000000, 151939915084881, 155929364660224, 160005726539569, 164170508913216, 168425239515625, 172771465793536, 177210755074809, 181744694737984, 186374892382561, 191102976000000, 195930594145441, 200859416110144, 205891132094649, 211027453382656, 216270112515625, 221620863468096, 227081481823729, 232653764952064, 238339532186001, 244140625000000, 250058907189001, 256096265048064, 262254607552729, 268535866540096, 274941996890625, 281474976710656, 288136807515649, 294929514414144, 301855146292441, 308915776000000, 316113500535561, 323450441233984, 330928743953809, 338550579265536, 346318142640625, 354233654641216, 362299361110569, 370517533364224, 378890468381881, 387420489000000, 396109944105121, 404961208827904, 413976684737889, 423158800038976, 432510009765625, 442032795979776, 451729667968489, 461603162442304, 471655843734321, 481890304000000.

Some larger examples :