M4maths Maths Puzzle Category

What is the next number of the following sequence
27, 72, 198, 1089, .....

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M4maths Other Question

An integer x is selected in such a way that
x + x^(1/2) + x^(1/4) = 276
Then sum of all digits of the number
y = 100000 x^(1/4) + 1000 x^(1/2) + x will be

OPTION 1) 16
2) 19
3) 22
4) 24
5) 26
6) 29
7) 32
8) 35
9) 36
10)39
What is the next number of the following sequence
27, 72, 198, 1089, .....