Compare 12 vs 31

Typecomposite numberprime
Unique factors21
Total factors31
Prime factorization22 × 31311
Prime factorization2 × 2 × 331
Divisors count62
Divisors1, 2, 3, 4, 6, 121, 31
Number of properties018
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 numberalsXIIXXXI
Base 211002111112
Base 3110310113
Base 43041334
Base 52251115
Base 6206516
Base 7157437
Base 8148378
Base 9139349
Base 1012103110
Base 1111112911
Base 1210122712
Base 13c132513
Base 14c142314
Base 15c152115
Base 16c161f16
This website uses cookies to ensure you get the best experience on our website. More info