Symbols for Number Base Usable Elements Each Place's Sixteenbase Sixteen Radix System Name Single Place Values Powers of Radix Written ||||| ||||| ||||| | Sixteen Hexadecimal 0 1 2 3 4 5 6 7 8 9 A B C D E F [256,257, ...,4095 = 163-1= 212-1], [16, 17,...,255 = 162-1], [0,1,..., 15 = 161-1] 4096, 256, 16, 1 10 V ||||| ||||| | Fifteen 0 1 2 3 4 5 6 7 8 9 A B C D E [225,226,...,3374 = 153-1], [15,16,...,224 = 152-1], [0,1,...,14 = 151-1] 3375, 225, 15, 1 11 X ||||| | Fourteen 0 1 2 3 4 5 6 7 8 9 A B C D [196,197,...,2743 = 143-1], [14,15,...,195 = 142-1], [0,1,...,13 = 141-1] 2744, 196, 14, 1 12 X V I Thirteen 0 1 2 3 4 5 6 7 8 9 A B C [169,170,...,2196 = 133-1], [13,14,...,168 = 132-1], [0,1,...,12 = 131-1] 2197, 169, 13, 1 13 XVI £ Twelve Duodecimal 0 1 2 3 4 5 6 7 8 9 X L [144,145,...,1727 = 123-1], [12,13,...,143 = 122-1], [0,1,...,11 = 121-1] 1728, 144, 12, 1 14 XVI ¢ Eleven 0 1 2 3 4 5 6 7 8 9 X [121,122,...,1330 = 113-1], [11,12,...,120 = 112-1], [0,1,...,10 = 111-1] 1331, 121, 11, 1 15 XVI ¥ Ten Decimal 0 1 2 3 4 5 6 7 8 9 [100,101,...,999 = 103-1], [10,11,...,99 = 102-1], [0,1,...,9 = 101-1] 1000, 100, 10, 1 16 ||||| ||||| ||||| | Nine 0 1 2 3 4 5 6 7 8 [81,82,...,728 = 93-1], [9,10,...,80 = 92-1], [0,1,...,8 = 91-1] 729, 81, 9, 1 17 16 dollars Eight Octal 0 1 2 3 4 5 6 7 [64,65,...,511 = 83-1], [8,9,...,63 = 82-1], [0,1,...,7 = 81-1] 512, 64, 8, 1 20 \$ 16 Seven 0 1 2 3 4 5 6 [49,50,...,342 = 73-1], [7,8,...,48 = 72-1], [0,1,...,6 = 71-1] 343, 49, 7, 1 22 16 pounds Six 0 1 2 3 4 5 [36,37,...,215 = 63-1], [6,7,...,35 = 62-1], [0,1,...,5 = 61-1] 216, 36, 6, 1 24 £ 16 Five 0 1 2 3 4 [25,26,...,124 = 53-1], [5,6,...,24 = 52-1], [0,1,...,4 = 51-1] 125, 25, 5, 1 31 ¥ 16 Four Quaternary 0 1 2 3 [16,17,...,63 = 43-1], [4,5,...,15 = 42-1], [0,1,...,3 = 41-1] 64, 16, 4, 1 100 16 yen Three Ternary 0 1 2 [9,10,...,26 = 33-1], [3,4,...,8 = 32-1], [0,1,2 = 31-1] 27, 9, 3, 1 121 ||||| ||||| ||||| | Two Binary 0 1 [8,9,..., 15 = 24-1], [4,5,6,7 = 23-1], [2,3 = 22-1], [0,1 = 21-1] 8, 4, 2, 1 1000