1101000101 ( base 2 ) or 1011000 ( base 3 ) or 31011 ( base 4 ) or 11322 ( base 5 ) or 3513 ( base 6 ) or
2304 ( base 7 ) or 1505 ( base 8 ) or 1130 ( base 9 ) or 837 ( base 10 ) or 6A1 ( base 11 ) or
599 ( base 12 ) or 4C5 ( base 13 ) or 43B ( base 14 ) or 3AC ( base 15 ) or 345 ( base 16 ) or
2F4 ( base 17 ) or 2A9 ( base 18 ) or 261 ( base 19 ) or 21H ( base 20 ) or 1II ( base 21 ) or
1G1 ( base 22 ) or 1D9 ( base 23 ) or 1AL ( base 24 ) or 18C ( base 25 ) or 165 ( base 26 ) or
140 ( base 27 ) or 11P ( base 28 ) or SP ( base 29 ) or RR ( base 30 ) or R0 ( base 31 ) or
Q5 ( base 32 ) or PC ( base 33 ) or OL ( base 34 ) or NW ( base 35 ) or N9 ( base 36 ) or
MN ( base 37 ) or M1 ( base 38 ) or LI ( base 39 ) or Kb ( base 40 ) or KH ( base 41 ) or
Jd ( base 42 ) or JK ( base 43 ) or J1 ( base 44 ) or IR ( base 45 ) or I9 ( base 46 ) or
Hc ( base 47 ) or HL ( base 48 ) or H4 ( base 49 ) or Gb ( base 50 ) or GL ( base 51 ) or
G5 ( base 52 ) or Fg ( base 53 ) or FR ( base 54 ) or FC ( base 55 ) or Er ( base 56 ) or
Ed ( base 57 ) or EP ( base 58 ) or EB ( base 59 ) or Dv ( base 60 ) or Di ( base 61 ) or
DV ( base 62 )
[SIZE=1](set of used digits (in sequence): {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9','A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q',
'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'})[/SIZE]
Prime factorization of 837: 3 * 3 * 3 * 31