Compare 6 vs 19

Unique factors21
Total factors21
Prime factorization21 × 31191
Prime factorization2 × 319
Divisors count42
Divisors1, 2, 3, 61, 19
Number of properties118
Centered triangular primes 1st
Chen primes 8th
Cousin primes (1st member) 4th
Cuban primes 1 2nd
Happy primes 3rd
Long primes 3rd
Pierpont primes 7th
Primes 8th
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) 4th
Sexy primes (2nd member) 4th
Sexy prime triplets (3rd member) 2nd
Solinas primes 7th
Twin primes (2nd member) 4th
Roman numberalsVIXIX
Base 21102100112
Base 32032013
Base 41241034
Base 5115345
Base 6106316
Base 767257
Base 868238
Base 969219
Base 106101910
Base 116111811
Base 126121712
Base 136131613
Base 146141514
Base 156151415
Base 166161316
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