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A062043 Numbers for which the product of the digits is 10 times their sum. 2
459, 495, 549, 594, 945, 954, 1566, 1656, 1665, 2259, 2295, 2355, 2529, 2535, 2553, 2592, 2925, 2952, 3255, 3525, 3552, 5166, 5229, 5235, 5253, 5292, 5325, 5352, 5523, 5532, 5616, 5661, 5922, 6156, 6165, 6516, 6561, 6615, 6651, 9225, 9252, 9522 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A subsequence of A011535 as each term must include the digit 5. - Chai Wah Wu, Dec 09 2015

LINKS

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

EXAMPLE

594 belongs to the sequence as (5*9*4)/(5+9+4) = 180/18 = 10.

MATHEMATICA

Select[Range[10000], Times @@ IntegerDigits[ # ] == 10 Plus @@ IntegerDigits[ # ] &] - Tanya Khovanova, Dec 25 2006

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=0; for (m=1, 10^7, if (ProdD(m)==10*SumD(m), write("b062043.txt", n++, " ", m); if (n==500, break)) ) } \\ Harry J. Smith, Jul 30 2009

CROSSREFS

Cf. A011535, A124694.

Sequence in context: A252408 A251474 A251468 * A124620 A224456 A121970

Adjacent sequences:  A062040 A062041 A062042 * A062044 A062045 A062046

KEYWORD

nonn,base,easy

AUTHOR

Amarnath Murthy, Jun 28 2001

EXTENSIONS

More terms from Harvey P. Dale and Larry Reeves (larryr(AT)acm.org), Jul 06 2001

STATUS

approved

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Last modified June 24 03:06 EDT 2017. Contains 288697 sequences.