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A337051
Least positive number that has exactly n different representations as the product of a number and of its decimal digits.
4
2, 1, 192, 1798848, 549504, 20150684596224
OFFSET
0,1
EXAMPLE
1 = 1 * (1).
192 = 24 * (2*4)
= 32 * (3*2).
1798848 = 6246 * (6*2*4*6)
= 12492 * (1*2*4*9*2)
= 33312 * (3*3*3*1*2).
549504 = 1696 * (1*6*9*6)
= 2862 * (2*8*6*2)
= 3392 * (3*3*9*2)
= 3816 * (3*8*1*6).
20150684596224 = 61699872 * (6*1*6*9*9*8*7*2)
= 123399744 * (1*2*3*3*9*9*7*4*4)
= 242943246 * (2*4*2*9*4*3*2*4*6)
= 323924328 * (3*2*3*9*2*4*3*2*8)
= 416474136 * (4*1*6*4*7*4*1*3*6).
CROSSREFS
KEYWORD
nonn,base,more
AUTHOR
Chai Wah Wu, Aug 12 2020
STATUS
approved