It is a 6-digit number. There is no repetition of digits.

it is divisible by 5 and is more than 300,000.

The digit in the hundreds place is 3 more than the digit in the ones place.

The digit in the ten thopusands place is 3 times the digit in the hundred thousand place.

The digit in the thousands place is half the value of the digit in the hundreds place.

The difference between the digits in the tens place and in the thousands place is 2