A243362
Numbers n such that A243361(n) = 123456789.
Original entry on oeis.org
54023, 54203, 500407, 23456789, 23458679, 23459687, 23465789, 23465987, 23469587, 23475869, 23478569, 23489657, 23495867, 23496587, 23498567, 23546879, 23546987, 23548697, 23564897, 23564987, 23567849, 23569487, 23576489, 23584679, 23587649, 23589647, 23594687
Offset: 1
Sets of divisors of a(n): (1, 89, 607, 54023); (1, 67, 809, 54203); (1, 83, 6029, 500407); (1, 23456789); …
A243364
Primes whose reverse concatenation of divisors (A176558) contains all the digits 1-9 exactly once; the number of digits 0 is arbitrary (in base 10).
Original entry on oeis.org
23456789, 23458679, 23459687, 23465789, 23465987, 23469587, 23475869, 23478569, 23489657, 23495867, 23496587, 23498567, 23546879, 23546987, 23548697, 23564897, 23564987, 23567849, 23569487, 23576489, 23584679, 23587649, 23589647, 23594687, 23645879, 23645987
Offset: 1
Prime 200000000003456789 is in sequence because A176558(200000000003456789) = 2000000000034567891; each digit 1 - 9 appears exactly once.
A255596
Distinct-digit primes that are the concatenation of m and prime(m) for some number m.
Original entry on oeis.org
23, 47, 613, 1237, 1759, 27103, 35149, 45197, 57269, 58271, 61283, 85439, 93487, 145829, 147853, 2371489, 3152087, 3902687, 4062791, 5614073, 5914327, 7405639, 8356421
Offset: 1
The last term is a(23) = 8356421 (prime) because all 7 digits are different and m=835 with 6421=prime(m).
A256339
Distinct-digit primes that are concatenation of prime(m) and m for some m.
Original entry on oeis.org
53, 239, 6719, 7321, 4073561, 6257813, 6521843, 85271063
Offset: 1
Subsequence of
A029743 (distinct-digit primes).
Showing 1-4 of 4 results.
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