Convert binary 1010101001 to decimal, octal, hexadecimal

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Convert 1010101001 from binary How to convert number 1010101001 from binary to decimal, octal, hexadecimal?
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Binar number

1010101001 to decimal

conversion rule

681

1010101001 to octal

conversion rule

1251

1010101001 to hexadecimal

conversion rule

2A9

Binary to Decimal

Convert 1010101001₂ to decimal:
1010101001₂ = 681₁₀

binary	1	0	1	0	1	0	1	0	0	1	step 0
decimal	(1*2⁹) +	(0*2⁸) +	(1*2⁷) +	(0*2⁶) +	(1*2⁵) +	(0*2⁴) +	(1*2³) +	(0*2²) +	(0*2¹) +	(1*2⁰)	step 1
decimal 681 =	512 +	0 +	128 +	0 +	32 +	0 +	8 +	0 +	0 +	1	step 2

Binary to Octal

Convert 1010101001₂ to octal:
1010101001₂ = 1 010 101 001 = 1251₈

binary 1010101001 1 010 101 001	1	010	101	001	step 0
octal 1251	1	2	5	1	step 1

Binary to Hexadecimal

Convert 1010101001₂ to hexadecimal:
1010101001₂ = 10 1010 1001 = 2A9₁₆

binary 1010101001	10	1010	1001	step 0
hexadecimal 2A9	2	A	9	step 1

Convert other numbers:

1010100100 1010100101 1010100110 1010100111 1010101000 1010101001 1010101010 1010101011 1010101100 1010101101 1010101110

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