|
Search: id:A104391
|
|
| |
|
| 402, 510, 700, 1113, 1131, 1311, 2006, 2022, 2130, 2211, 2240, 3102, 3111, 3204, 3210, 3220, 4031, 4300, 4410, 5310, 6004, 6100, 6300, 7031, 7120, 9000, 10034, 10125, 10206, 10251, 10304, 10413, 10521, 10612, 10800, 11033, 11111, 11114
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
REFERENCES
|
McDaniel,W.L., "The Existence of infinitely Many k-Smith numbers", Fibonacci Quarterly, 25(1987), pp. 76-80.
|
|
LINKS
|
S. S. Gupta, Smith numbers.
|
|
EXAMPLE
|
402 is a 3-Smith number because sum of the digits of its prime factors, i.e. Sp (402) = Sp(2*3*67)= 2 + 3 + 6 + 7 = 18 which is equal to 3 times the digit sum of 402 i.e. 3*S(402) = 3*(4+0+2)=18
|
|
CROSSREFS
|
Cf. A006753, A104390.
Sequence in context: A097742 A115244 A031518 this_sequence A128767 A097740 A083815
Adjacent sequences: A104388 A104389 A104390 this_sequence A104392 A104393 A104394
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Eric Weisstein (eric(AT)weisstein.com), Mar 04, 2005 and Shyam Sunder Gupta (guptass(AT)rediffmail.com), Mar 11 2005
|
|
|
Search completed in 0.002 seconds
|
