Compare 19 vs 43

Unique factors11
Total factors11
Prime factorization191431
Prime factorization1943
Divisors count22
Divisors1, 191, 43
Number of properties1812
Additive primes 9th
Centered heptagonal primes 1st
Centered triangular primes1st 
Chen primes8th 
Cousin primes (1st member)4th6th
Cuban primes 12nd 
Happy primes3rd 
Left-truncatable primes 9th
Long primes3rd 
Lucky primes 6th
Pierpont primes7th 
Prime quadruplets (4th member)2nd 
Prime quintuplet 1s (5th member)1st 
Prime quintuplet 2s (4th member)2nd 
Prime sextuplets (5th member)1st 
Prime triplets (2nd member)5th7th
Prime triplets (3rd member)4th6th
Sexy primes (2nd member)4th8th
Sexy prime triplets (3rd member)2nd5th
Solinas primes7th 
Twin primes (2nd member)4th6th
Wagstaff primes 3rd
Roman numberalsXIXXLIII
Base 21001121010112
Base 3201311213
Base 410342234
Base 53451335
Base 63161116
Base 7257617
Base 8238538
Base 9219479
Base 1019104310
Base 1118113a11
Base 1217123712
Base 1316133413
Base 1415143114
Base 1514152d15
Base 1613162b16
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