Compare 19 vs 47

Unique factors11
Total factors11
Prime factorization191471
Prime factorization1947
Divisors count22
Divisors1, 191, 47
Number of properties1821
Additive primes 10th
Carol primes 2nd
Centered triangular primes1st 
Chen primes8th14th
Class 1+ primes 9th
Cousin primes (1st member)4th 
Cousin primes (2nd member) 6th
Cuban primes 12nd 
Happy primes3rd 
Isolated primes 4th
Left-truncatable primes 10th
Long primes3rd6th
Lucas primes 6th
Pierpont primes7th 
Pierpont primes of the 2nd kind 9th
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)5th 
Prime triplets (3rd member)4th7th
Safe primes 5th
Sexy primes (1st member) 10th
Sexy primes (2nd member)4th9th
Sexy prime quadrupletss (2nd member) 3rd
Sexy prime triplets (1st member) 7th
Sexy prime triplets (2nd member) 6th
Sexy prime triplets (3rd member)2nd 
Solinas primes7th13th
Thabit primes 5th
Twin primes (2nd member)4th 
Ulam primes 5th
Roman numberalsXIXXLVII
Base 21001121011112
Base 3201312023
Base 410342334
Base 53451425
Base 63161156
Base 7257657
Base 8238578
Base 9219529
Base 1019104710
Base 1118114311
Base 1217123b12
Base 1316133813
Base 1415143514
Base 1514153215
Base 1613162f16
This website uses cookies to ensure you get the best experience on our website. More info