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cubic n.  and  impolite n.

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(max 15 digits)

First numbers that belong to both sets:

1, 8, 64, 512, 4096, 32768, 262144, 2097152, 16777216, 134217728, 1073741824, 8589934592, 68719476736, 549755813888, 4398046511104, 35184372088832, 281474976710656.