Compare 45 vs 53

Typecomposite numberprime
Unique factors21
Total factors31
Prime factorization32 × 51531
Prime factorization3 × 3 × 553
Divisors count62
Divisors1, 3, 5, 9, 15, 451, 53
Number of properties018
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 numberalsXLVLIII
Base 210110121101012
Base 31200312223
Base 423143114
Base 514052035
Base 611361256
Base 76371047
Base 8558658
Base 9509589
Base 1045105310
Base 1141114911
Base 1239124512
Base 1336134113
Base 1433143b14
Base 1530153815
Base 162d163516
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