Explicație pas cu pas:
47:2=23 r 1
23:2=11 r 1
11:2=5 r 1
5:2= 2 r 1
2:2=1 r 0=101111
129:2=64 r 1
64:2=32 r 0
32:2=16 r 0
16:2= 8 r 0
8:2=4 r 0
4:2=2 r 0
2:2=1 r 0=10000001
2019:2=1009 r 1
1009:2=504 r 1
504:2=252 r 0
252:2=126 r 0
126:2=63 r 0
63:2=31 r 1
31:2=15 r 1
15:2= 7 r 1
7:2=3 r 1
3:2=1 r 1=11111100011