Closest hex to #431101 is #410

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#
#410

431101

431101

contains 41

041 141 241 341 410 411 412 413 414 415 416 417 418 419 41a 41b 41c 41d 41e 41f 441 541 641 741 841 941 a41 b41 c41 d41 e41 f41

contains 10

010 100 101 102 103 104 105 106 107 108 109 10a 10b 10c 10d 10e 10f 110 210 310 410 510 610 710 810 910 a10 b10 c10 d10 e10 f10

contains 40

040 140 240 340 400 401 402 403 404 405 406 407 408 409 40a 40b 40c 40d 40e 40f 440 540 640 740 840 940 a40 b40 c40 d40 e40 f40