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 A062040 Numbers for which the product of the digits is 8 times their sum. 1
 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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Harry J. Smith, Table of n, a(n) for n=0,...,500 EXAMPLE 2248 belongs to the sequence as (2*2*4*8)/2+2+4+8) = 128/16 = 8. PROG (PARI) SumD(x)= { s=0; while (x>9, s=s+x-10*(x\10); x\=10); return(s + x) } ProdD(x)= { p=1; while (x>9, p=p*(x-10*(x\10)); x\=10); return(p*x) } { n=-1; for (m=1, 10^7, if (ProdD(m)==8*SumD(m), write("b062040.txt", n++, " ", m); if (n==500, break)) ) } \\ Harry J. Smith, Jul 30 2009 CROSSREFS Sequence in context: A203960 A147628 A153486 * A093786 A251646 A235177 Adjacent sequences:  A062037 A062038 A062039 * A062041 A062042 A062043 KEYWORD nonn,base,easy AUTHOR Amarnath Murthy, Jun 28 2001 EXTENSIONS Corrected and extended by Larry Reeves (larryr(AT)acm.org), Jul 06 2001 STATUS approved

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Last modified October 14 09:25 EDT 2019. Contains 327995 sequences. (Running on oeis4.)