I am a six-digit number between 600,000 and 700,000. The digit in the ten thousands place is 1 more than the digits in the thousands and hundreds place. The digit in the hundreds place is 3. The sum of the digits in the ones and tens place equals the digits in the hundred thousands place.

Answer 1

number between 600,000 and 700,000
6xx,xxx

The digit in the hundreds place is 3.
6xx,3xx

The digit in the ten thousands place is 1 more than the digits in the thousands and hundreds place.
643,3xx

The sum of the digits in the ones and tens place equals the digits in the hundred thousands place.
last two digits are among
06, 15, 24, 33, 42, 51, 60

If you wanted unique digits, then the 3rd condition is unclear.

Answer 2

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