Convert binary 1010101 to decimal, octal, hexadecimal

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Convert 1010101 from binary How to convert number 1010101 from binary to decimal, octal, hexadecimal?
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Binar number

1010101 to decimal

conversion rule

85

1010101 to octal

conversion rule

125

1010101 to hexadecimal

conversion rule

55

Binary to Decimal

Convert 1010101₂ to decimal:
1010101₂ = 85₁₀

binary	1	0	1	0	1	0	1	step 0
decimal	(1*2⁶) +	(0*2⁵) +	(1*2⁴) +	(0*2³) +	(1*2²) +	(0*2¹) +	(1*2⁰)	step 1
decimal 85 =	64 +	0 +	16 +	0 +	4 +	0 +	1	step 2

Binary to Octal

Convert 1010101₂ to octal:
1010101₂ = 1 010 101 = 125₈

binary 1010101 1 010 101	1	010	101	step 0
octal 125	1	2	5	step 1

Binary to Hexadecimal

Convert 1010101₂ to hexadecimal:
1010101₂ = 101 0101 = 55₁₆

binary 1010101	101	0101	step 0
hexadecimal 55	5	5	step 1

Convert other numbers:

1010000 1010001 1010010 1010011 1010100 1010101 1010110 1010111 1011000 1011001 1011010

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