Compare 26 vs 31

Unique factors21
Total factors21
Prime factorization21 × 131311
Prime factorization2 × 1331
Divisors count42
Divisors1, 2, 13, 261, 31
Number of properties118
Centered decagonal primes 2nd
Centered triangular primes 2nd
Chen primes 11th
Class 1+ primes 8th
Emirps 3rd
Euclid primes 4th
Happy primes 5th
Lucky primes 4th
Mersenne primes 3rd
Multiplicative primes 7th
Pierpont primes of the 2nd kind 8th
Primes 11th
Right-truncatable primes 7th
Sexy primes (1st member) 7th
Sexy prime triplets (1st member) 5th
Solinas primes 10th
Super primes 5th
Twin primes (2nd member) 5th
Roman numberalsXXVIXXXI
Base 2110102111112
Base 3222310113
Base 412241334
Base 510151115
Base 6426516
Base 7357437
Base 8328378
Base 9289349
Base 1026103110
Base 1124112911
Base 1222122712
Base 1320132513
Base 141c142314
Base 151b152115
Base 161a161f16
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