Compare 39 vs 53

Unique factors21
Total factors21
Prime factorization31 × 131531
Prime factorization3 × 1353
Divisors count42
Divisors1, 3, 13, 391, 53
Number of properties118
Chen primes 15th
Class 1+ primes 10th
Good primes 7th
Isolated primes 5th
Left-truncatable primes 11th
Pierpont primes of the 2nd kind 10th
Primes 16th
Pythagorean primes 7th
Restricted right-truncatable primes 1st
Right-truncatable primes 9th
Sexy primes (1st member) 11th
Sexy primes (2nd member) 10th
Sexy prime quadrupletss (3rd member) 3rd
Sexy prime triplets (2nd member) 7th
Sexy prime triplets (3rd member) 6th
Sophie germain primes 8th
Two-sided primes 7th
Ulam primes 6th
Roman numberalsXXXIXLIII
Base 210011121101012
Base 31110312223
Base 421343114
Base 512452035
Base 610361256
Base 75471047
Base 8478658
Base 9439589
Base 1039105310
Base 1136114911
Base 1233124512
Base 1330134113
Base 142b143b14
Base 1529153815
Base 1627163516
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