Convert octal 21 to binary, decimal, hexadecimal

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Convert 21 from octal How to convert number 21 from octal to binary, decimal, hexadecimal?
Octal to: binary decimal hexadecimal

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Octal number

conversion rule

17

conversion rule

10001

21 to hexadecimal

conversion rule

11

Octal to Decimal

Convert 21₈ to decimal:
21₈ = 17₁₀

octal 21	2	1	step 0
convert to	(2*8¹) +	(1*8⁰)	step 1
decimal 17 =	16 +	1	step 2

Octal to Binary

Convert 21₈ to binary:
21₈ = 10001₂

octal 21	2	1	step 0
convert to	010	001	step 1
binary 10001 =	10	001	step 2

Octal to Hexadecimal

Convert 21₈ to hexadecimal:
21₈ = 11₁₆

octal 21	2	1	step 0
convert to	010	001	step 1
binary 10001 =	10	001	step 2

binary 10001	1	0001	step 3
hexadecimal 11	1	1	step 4

Convert other numbers:

14 15 16 17 20 21 22 23 24 25 26

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