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nialpdrome  and  tau n.

First numbers that belong to both sets:

1, 2, 8, 9, 40, 60, 72, 80, 84, 88, 96, 441, 444, 600, 632, 640, 664, 720, 732, 776, 852, 864, 872, 876, 880, 882, 972, 996, 2000, 4320, 5000, 5220, 5520, 5532, 6000, 6320, 6432, 6444, 6632, 6640, 6660, 7432, 7440, 7500, 7552, 7740, 7760, 7764, 7776, 8100, 8320, 8400, 8544, 8552, 8664, 8720, 8744, 8776, 8832, 8872, 8880, 9432, 9444, 9520, 9522, 9540, 9544, 9600, 9732, 9832, 9840, 9852, 9864, 9876, 9888, 9972, 9992, 10000, 22000, 30000, 32220, 42000, 44400, 52200, 54000, 54320, 54432, 55000, 55332, 55440, 60000, 62000, 64000, 64332, 65000, 65432, 65520, 66000, 66320, 66420, 66432, 66600, 66632, 70000, 73200, 74000, 74320, 75420, 75440, 75444, 75552, 76320, 76332, 76644, 77400, 77432, 77520, 77664, 77752, 77772, 80000, 82000, 84000, 85000, 85200, 85520, 86000, 86220, 86320, 86400, 86532, 86640, 86652, 87440, 87444, 87600, 87660, 87732, 87760, 88552, 88632, 88664, 88720, 88744, 88880, 90000, 94000, 94320, 95000, 95400, 95440, 95520, 95544, 96320, 96640, 97200, 97332, 97440, 97500, 97520, 97632, 97664, 97764, 98320, 98432, 98632, 98640, 98652, 98744, 98772, 98776, 98820, 98844, 99432, 99440, 99444, 99552, 99600, 99732, 99744, 99760, 99832, 99840, 99920, 99972, 99976, 110000, 210000, 222000, 310000, 320000, 322000, 322200, 330000, 332100, 410000, 420000, 422000, 430000, 432000, 433332, 442000, 444000, 510000, 522000, 530000, 540000, 542000, 544320, 544332, 553200, 554000, 554220, 555440, 555520, 555552, 610000, 622000, 630000, 642000, 643200, 643332, 644400, 654000, 654320, 654432, 655000, 655432, 655440, 655544, 660000, 662000, 664200, 665520, 666000, 666320, 666640, 710000, 720000, 730000, 732000, 733200, 742000, 743220, 744320, 752000, 753300, 754000, 754200, 754320, 754332, 755000, 755440, 755532, 762000, 763332, 765000, 765432, 765440, 765520, 765540, 766000, 766320, 766332, 766552, 766620, 770000, 774000, 774320, 774432, 775440, 775552, 776320, 776400, 776544, 777520, 777600, 777732, 810000, 822000.

Some larger examples :