Compare 13 vs 13

Unique factors11
Total factors11
Prime factorization131131
Prime factorization1313
Divisors count22
Divisors1, 131, 13
Number of properties3232
Centered square primes2nd2nd
Chen primes6th6th
Cousin primes (1st member)3rd3rd
Cuban primes 21st1st
Fibonacci primes4th4th
Happy primes2nd2nd
Harmonic primes2nd2nd
Left-truncatable primes5th5th
Lucky primes3rd3rd
Multiplicative primes5th5th
Pierpont primes5th5th
Prime quadruplets (2nd member)2nd2nd
Prime quadruplets (4th member)1st1st
Prime quintuplet 1s (3rd member)1st1st
Prime quintuplet 2s (2nd member)2nd2nd
Prime quintuplet 2s (4th member)1st1st
Prime sextuplets (3rd member)1st1st
Prime triplets (1st member)4th4th
Prime triplets (2nd member)3rd3rd
Prime triplets (3rd member)2nd2nd
Proth primes3rd3rd
Pythagorean primes2nd2nd
Sexy primes (1st member)4th4th
Sexy primes (2nd member)2nd2nd
Sexy prime triplets (2nd member)2nd2nd
Solinas primes5th5th
Thabit primes of the 2nd kind2nd2nd
Twin primes (2nd member)3rd3rd
Ulam primes4th4th
Wilson primes2nd2nd
Roman numberalsXIIIXIII
Base 21101211012
Base 311131113
Base 4314314
Base 5235235
Base 6216216
Base 7167167
Base 8158158
Base 9149149
Base 1013101310
Base 1112111211
Base 1211121112
Base 1310131013
Base 14d14d14
Base 15d15d15
Base 16d16d16
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