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A093859 Numbers whose sum of the digital products of the divisors is prime. 0
2, 4, 9, 11, 18, 21, 23, 29, 36, 41, 43, 45, 47, 58, 61, 67, 72, 75, 82, 85, 89, 90, 94, 115, 116, 122, 128, 130, 143, 144, 149, 150, 162, 163, 165, 167, 168, 170, 175, 178, 180, 185, 202, 206, 207, 209, 211, 213, 214, 218, 219, 223, 227, 229, 230, 233, 237, 243 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
8842 is in the sequence because its divisors are [1, 2, 4421, 8842] and 1+2+(4*4*2*1)+(8*8*4*2) = 547, a prime.
CROSSREFS
Sequence in context: A356181 A047348 A186699 * A266257 A115905 A292769
KEYWORD
base,easy,nonn
AUTHOR
Jason Earls, May 21 2004
STATUS
approved

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Last modified June 14 20:28 EDT 2024. Contains 373401 sequences. (Running on oeis4.)