27 : 2 = 13 rest 1
13 : 2 = 6 rest 1
6 : 2 = 3 rest 0
3 : 2 = 1 rest 1
1 : 2 = 0 rest 1 ↑
citim resturile de jos in sus si avem
27₁₀ = 11011₂
38 : 2 = 19 rest 0
19 : 2 = 9 rest 1
9 : 2 = 4 +rest 1
4 : 2 = 2 rest 0
2 : 2 = 1 rest 0
1 : 2 = 0 rest 1 ↑
citim resturile de jos in sus si avem
38₁₀ = 100110₂