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Search: id:A062237
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| A062237 |
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Numbers n which are (sum of digits of n) concatenated with (product of digits of n). |
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+0
1
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| 10, 20, 30, 40, 50, 60, 70, 80, 90, 119, 1236, 19135, 19144, 261296, 3634992, 43139968
(list; graph; listen)
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OFFSET
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0,1
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COMMENT
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For a d-digit number with d >= 88, the sum and product of the digits together have fewer than d digits. So every element of this sequence has 87 or fewer digits, hence it is finite. - David W. Wilson (davidwwilson(AT)comcast.net), Apr 28 2005
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EXAMPLE
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1236 has sum of digits 12 and product of digits 36
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CROSSREFS
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Adjacent sequences: A062234 A062235 A062236 this_sequence A062238 A062239 A062240
Sequence in context: A118959 A043489 A028440 this_sequence A033022 A031497 A020337
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KEYWORD
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nonn,base,fini,full
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AUTHOR
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Erich Friedman (efriedma(AT)stetson.edu), Jun 30 2001
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EXTENSIONS
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More terms from Harvey P. Dale (hpd1(AT)nyu.edu), Jul 04 2001
More terms from David W. Wilson (davidwwilson(AT)comcast.net), Apr 28 2005; he reports on May 03 2005 that there are no further terms.
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