RPTR ERROR ADMITTED IN GEAR UP LNDG.

Narrative

MONDAY MORNING I TOOK OFF FROM DES MOINES; IOWA. NICE VFR MORNING. STARTED MY DSCNT TO MOLINE ARPT; IL; AROUND XY00 AM. ABOUT 3 MI OUT I DID A REALLY QUICK 'GUMPS' CHK. I WAS LOOKING AROUND FOR OTHER AIRPLANES AND TWR CLRED ME TO LAND ABOUT 2 MI OUT. DIDN'T DO A SECOND 'GUMPS' CHK AND PUT MY 3 DEGS KTS OF FLAPS IN AND REDUCED PWR TO LESS THAN 12 INCHES OF MANIFOLD PRESSURE. WHEN I FLARED I REALIZED MY LNDG GEAR WAS NOT DOWN BUT AT THAT MOMENT THE PROP HIT THE RWY. THE CAUSE WAS THAT I WAS TOO RELAXED. THE AIR TAXI COMPANY I WORK FOR LET ME DO THEIR LONGEST RUN. A 13 HR DUTY TIME A DAY AND WORKED 10 OF THE LAST 14 DAYS 12 HRS. HAD SUNDAY OFF BUT BECAUSE OF PERSONAL THINGS THAT WEEKEND I DIDN'T GET MUCH SLEEP. FATIGUE WAS EXISTING AT THE TIME OF THE INCIDENT AND I THINK WAS THE CAUSE OF THIS INCIDENT. TO PREVENT THIS YOU SHOULD ALWAYS USE A CHKLIST EVEN THOUGH YOU LANDED OR WENT THROUGH THE CHKLIST PROCS HUNDREDS OF TIMES AND ESPECIALLY ON VFR DAYS WITH THE WINDS CALM AND 10 PLUS MI VISIBILITY.