# Hexa decimal number

Hexa decimal number is system number who have 16 digit numbers, which is 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F, where:

A present of 10

B present of 11

C present of 12

D present of 13

E present of 14

F present of 15.

Hexa decimal number base 16 numeral system.

Hexa decimal number weights

16

^{0}= 1 → first digit, weights one

16

^{1}= 16 → second digit, weights sixteen

16

^{2}= 256 → third digit, weights two hundred and six

16

^{3}= 4096 → fourth digit, weights 512

16

^{4}= 65536 → fifth digit, weights 4096

etc.

Example 1:

Convert Hexa decimal number 750 to decimal number

Completion:

750

_{(16)}= ?

_{(10)}

0 → 0 × 16

^{0}= 0

5 → 5 × 16

^{1}= 80

7 → 7 × 16

^{2}= 7 × 256 = 1792

750 → 0 + 80 + 1792 = 1872

750

_{(16)}= 1872

_{(10)}.

Example 2:

Convert Hexa decimal number 20BCA to decimal number

Completion:

20BCA

_{(16)}= ?

_{(10)}

A → 10 × 16

^{0}= 10

C → 12 × 16

^{1}= 192

B → 11 × 16

^{2}= 11 × 256 = 2816

0 → 0 × 16

^{3}= 0

2 → 2 × 16

^{4}= 2 × 65536 = 131072

20BCA → 10 + 192 + 2816 + 0 + 131072 = 134090

20BCA

_{(16)}= 134090

_{(10)}.

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