Converts a octal number to hexadecimal.

OCT2HEX(octalnumber, numdigits)

returns text representing a hexadecimal number, given octalnumber, which may be text, or a number containing only digits 0 to 7 (thus the number appears to be octal although it is not).

octalnumber may have up to ten digit in twos complement representation; positive numbers are 0 to 3777777777 (representing 0 to 229-1 decimal) and negative numbers 7777777777 to 4000000000 (representing -1 to -229 decimal).

numdigits is an optional number specifying the number of digits to return.

If octalnumber is negative, OCT2HEX returns ten octal digits, representing the octal number in twos complement form.

OCT2HEX("35")

returns 1D as text.

OCT2HEX(35)

returns 1D as text. The number 35 is read as octal, even though it is not.

OCT2HEX("35", 4)

returns 001D as text. OCT2HEX adds leading zeroes to make 4 digits.

OCT2HEX("7777777776")

returns FFFFFFFFFE as text (twos complement representation of decimal -2).

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