Compare 42 vs 53

Typecomposite numberprime
Unique factors31
Total factors31
Prime factorization21 × 31 × 71531
Prime factorization2 × 3 × 753
Divisors count82
Divisors1, 2, 3, 6, 7, 14, 21, 421, 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 numberalsXLIILIII
Base 210101021101012
Base 31120312223
Base 422243114
Base 513252035
Base 611061256
Base 76071047
Base 8528658
Base 9469589
Base 1042105310
Base 1139114911
Base 1236124512
Base 1333134113
Base 1430143b14
Base 152c153815
Base 162a163516
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