A062040 Positive numbers whose product of digits is 8 times their sum.

448, 456, 465, 484, 546, 564, 645, 654, 844, 1368, 1386, 1449, 1494, 1638, 1683, 1836, 1863, 1944, 2248, 2256, 2265, 2284, 2428, 2482, 2526, 2562, 2625, 2652, 2824, 2842, 3168, 3186, 3618, 3681, 3816, 3861, 4149, 4194, 4228, 4282, 4419, 4491, 4822

Offset: 1

Author

Amarnath Murthy, Jun 28 2001

Keywords

• nonn
• base
• easy

Examples

			2248 belongs to the sequence as (2*2*4*8)/(2+2+4+8) = 128/16 = 8.
		

Links

• Harry J. Smith, Table of n, a(n) for n = 1..500

Crossrefs

Cf. A011540, A034710, A062034, A062035, A062036, A062382, A062037, A062384, A062041, A062043, A062045.

Programs

PARI

isok(n) = my(d=digits(n)); vecprod(d)==8*vecsum(d) \\ Mohammed Yaseen, Sep 11 2022

Extensions

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

Offset corrected by Mohammed Yaseen, Sep 11 2022