Compare 22 vs 31

Unique factors21
Total factors21
Prime factorization21 × 111311
Prime factorization2 × 1131
Divisors count42
Divisors1, 2, 11, 221, 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 numberalsXXIIXXXI
Base 2101102111112
Base 3211310113
Base 411241334
Base 54251115
Base 6346516
Base 7317437
Base 8268378
Base 9249349
Base 1022103110
Base 1120112911
Base 121a122712
Base 1319132513
Base 1418142314
Base 1517152115
Base 1616161f16
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