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Find the next number in the series

12, 20, 40, 72, 116, 172 ?

$12 + 8 + 0*10 = 20$

$20 + 10 + 1*10 = 40$

$40 + 12 + 2*10 = 72$

$72 + 14 + 3*10 = 116$

$116 + 16 + 4*10 = 172$

$172 + 18 + 5*10 = 240$

Hence,Next number will be $240$.