Assume cell A1, need to enter these formulas with CTRL+SHIFT+ENTER as they
are array formulas:

To add the odd numbers:
=SUMPRODUCT(IF(MOD(ROW(INDIRECT("1:"&LEN(A1))),2)= 1,--MID(A1,ROW(INDIRECT("1:"&LEN(A1))),1),0))

To add the even numbers:
=SUMPRODUCT(IF(MOD(ROW(INDIRECT("1:"&LEN(A1))),2)= 0,--MID(A1,ROW(INDIRECT("1:"&LEN(A1))),1),0))
--
Regards,
Dave


"dantee" wrote:

Hello.

Does anyone knows a function or formula that would add the digits of a
number and spit out a result?

Example.... take the number 1092836103274 (all by itself in a cell)

add the 1st, 3rd, 5th digits and so on to get 1+9+8+6+0+2+4=30

or add the 2nd, 4th, 6th digits and get the result of 0+2+3+1+3+7=16

curious
dantee.