A115686 Powerful(1) numbers (A001694) whose digit reversal is a prime number.

16, 32, 125, 128, 196, 200, 361, 392, 500, 784, 1024, 1352, 1369, 1372, 1444, 1600, 1681, 2000, 3200, 3844, 5000, 7225, 7688, 7921, 9025, 9248, 9409, 9800, 10976, 11236, 12500, 12800, 13448, 14161, 14792, 16000, 18496, 19321, 19600, 20000

Offset: 1

Author

Giovanni Resta, Jan 31 2006

Keywords

• nonn
• base

Examples

			7688=2^3*31^2 is powerful and 8867 is prime.
		

Links

• Index entries for sequences related to powerful numbers

Crossrefs

Cf. A001694.