A062041 Positive numbers whose product of digits is 9 times their sum.
369, 396, 466, 639, 646, 664, 693, 936, 963, 2266, 2338, 2383, 2626, 2662, 2833, 3238, 3283, 3328, 3382, 3823, 3832, 6226, 6262, 6622, 8233, 8323, 8332, 11379, 11397, 11459, 11495, 11549, 11594, 11739, 11793, 11937, 11945, 11954, 11973
Offset: 1
Examples
12339 belongs to the sequence as (1*2*3*3*9)/(1+2+3+3+9) = 162/18 = 9.
Links
- Harry J. Smith, Table of n, a(n) for n = 1..500
Crossrefs
Programs
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PARI
isok(n) = my(d=digits(n)); vecprod(d)==9*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