A062371 -id:A062371 - cp's OEIS frontend

A062372 Numbers the product of whose nonzero digits is a cube.

1, 8, 10, 11, 18, 24, 39, 42, 80, 81, 88, 93, 100, 101, 108, 110, 111, 118, 124, 139, 142, 180, 181, 188, 193, 204, 214, 222, 240, 241, 248, 284, 309, 319, 333, 389, 390, 391, 398, 402, 412, 420, 421, 428, 444, 469, 482, 496, 555, 649, 666, 694, 777, 800, 801

Offset: 1

Amarnath Murthy, Jun 26 2001

			142 is a member as 1*4*2 = 8 is a cube. 180 is also a member as 1*8 = 8.

Harry J. Smith, Table of n, a(n) for n = 1..1000

Cf. A062371.

ok(k)={my(d=digits(k)); ispower(prod(i=1, #d, if(d[i], d[i], 1)), 3)} \\ Andrew Howroyd, Jun 29 2018

Corrected and extended by Larry Reeves (larryr(AT)acm.org), Jul 06 2001

Offset changed by Andrew Howroyd, Sep 17 2024

A174800 Number whose product of digits is a square.

Original entry on oeis.org

0, 1, 4, 9, 10, 11, 14, 19, 20, 22, 28, 30, 33, 40, 41, 44, 49, 50, 55, 60, 66, 70, 77, 80, 82, 88, 90, 91, 94, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 114, 119, 120, 122, 128, 130, 133, 140, 141, 144, 149, 150, 155, 160, 166, 170, 177, 180, 182, 188, 190, 191, 194, 199, 200

Offset: 0

Michel Lagneau, Dec 01 2010

Differs from A062371 in that here the digit 0 is included in the product and so every number containing a zero belongs to this sequence. - D. S. McNeil, Dec 01 2010

			149 is in the sequence because 1*4*9 = 6^2; 20 is in the sequence because 2*0 = 0^2.

Cf. A062371.

Select[Range[1000], IntegerQ[Sqrt[Times @@ (IntegerDigits[#])]] &]

cp's OEIS Frontend

A062372 Numbers the product of whose nonzero digits is a cube.

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