Compare 19 vs 37

Unique factors11
Total factors11
Prime factorization191371
Prime factorization1937
Divisors count22
Divisors1, 191, 37
Number of properties1818
Centered triangular primes1st 
Chen primes8th12th
Cousin primes (1st member)4th5th
Cuban primes 12nd3rd
Emirps 4th
Good primes 5th
Happy primes3rd 
Isolated primes 3rd
Left-truncatable primes 8th
Long primes3rd 
Lucky primes 5th
Pierpont primes7th8th
Prime quadruplets (4th member)2nd 
Prime quintuplet 1s (5th member)1st 
Prime quintuplet 2s (4th member)2nd 
Prime sextuplets (5th member)1st 
Prime triplets (1st member) 6th
Prime triplets (2nd member)5th 
Prime triplets (3rd member)4th 
Pythagorean primes 5th
Right-truncatable primes 8th
Sexy primes (1st member) 8th
Sexy primes (2nd member)4th7th
Sexy prime triplets (2nd member) 5th
Sexy prime triplets (3rd member)2nd 
Solinas primes7th11th
Twin primes (2nd member)4th 
Two-sided primes 6th
Roman numberalsXIXXXXVII
Base 21001121001012
Base 3201311013
Base 410342114
Base 53451225
Base 63161016
Base 7257527
Base 8238458
Base 9219419
Base 1019103710
Base 1118113411
Base 1217123112
Base 1316132b13
Base 1415142914
Base 1514152715
Base 1613162516
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