Figure D-2. Octal To Decimal Conversion; Octal To Decimal - HP NonStop NS-series Operation Manual

Converting Numbers

Octal to Decimal

To convert an octal number to a decimal number:
1. Starting from the right, multiply the least significant (rightmost) octal digit by the
first placeholder value. Moving towards the left, multiply each new octal digit by its
corresponding placeholder value until the octal number is exhausted.
To establish placeholder values, the first placeholder value on the far right is 1.
Then for each new placeholder value to the left, multiply the value to the right by 8.
2. Add the results of the multiplications in Step 1.
Example
Convert the octal value 1375 to its decimal equivalent. (In this example, the symbol "*"
indicates multiplication.) Refer to

Figure D-2. Octal to Decimal Conversion

Placeholder
values
Octal number
1. Take the rightmost octal digit and multiply it by the rightmost placeholder value.
2. Moving to the left, take the next octal digit and multiply it by the next placeholder
value. Continue to do this until the octal number has been exhausted.
3. Add the multiplied values together. The result is:
Octal Value
%1375
HP Integrity NonStop NS-Series Operations Guide —529869-005
Figure
4096 512 64
...
1 3
...
3 * 64
1 * 512
Decimal Value
765
D- 4
D-2.
8 1
7 5
5 * 1 = 5
7 * 8 = 56
= 192
= 512
765
CDT 608
Octal to Decimal
.CDD