Compare 39 vs 43

Unique factors21
Total factors21
Prime factorization31 × 131431
Prime factorization3 × 1343
Divisors count42
Divisors1, 3, 13, 391, 43
Number of properties112
Additive primes 9th
Centered heptagonal primes 1st
Cousin primes (1st member) 6th
Left-truncatable primes 9th
Lucky primes 6th
Primes 14th
Prime triplets (2nd member) 7th
Prime triplets (3rd member) 6th
Sexy primes (2nd member) 8th
Sexy prime triplets (3rd member) 5th
Twin primes (2nd member) 6th
Wagstaff primes 3rd
Roman numberalsXXXIXXLIII
Base 210011121010112
Base 31110311213
Base 421342234
Base 512451335
Base 610361116
Base 7547617
Base 8478538
Base 9439479
Base 1039104310
Base 1136113a11
Base 1233123712
Base 1330133413
Base 142b143114
Base 1529152d15
Base 1627162b16
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