Compare 53 vs 57

Unique factors12
Total factors12
Prime factorization53131 × 191
Prime factorization533 × 19
Divisors count24
Divisors1, 531, 3, 19, 57
Number of properties181
Chen primes15th 
Class 1+ primes10th 
Good primes7th 
Isolated primes5th 
Left-truncatable primes11th 
Pierpont primes of the 2nd kind10th 
Pythagorean primes7th 
Restricted right-truncatable primes1st 
Right-truncatable primes9th 
Semiprimes 20th
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 primes8th 
Two-sided primes7th 
Ulam primes6th 
Roman numberalsLIIILVII
Base 211010121110012
Base 31222320103
Base 431143214
Base 520352125
Base 612561336
Base 710471117
Base 8658718
Base 9589639
Base 1053105710
Base 1149115211
Base 1245124912
Base 1341134513
Base 143b144114
Base 1538153c15
Base 1635163916
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