Compare 664121 vs 664667

Property	664121	664667
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	664121¹	664667¹
Prime factorization	664121	664667
Divisors count	2	2
Divisors	1, 664121	1, 664667
Number of properties	6	8
Chen primes	21072nd	21091st
Cousin primes (2nd member)	5810th	5813th
Happy primes	7639th
Primes	53878th	53922nd
Prime quadruplets (3rd member)		129th
Prime triplets (2nd member)	2119th	2121st
Prime triplets (3rd member)		2120th
Sexy primes (2nd member)		11637th
Twin primes (1st member)	5817th	5822nd
Roman numberals
Base 2	10100010001000111001₂	10100010010001011011₂
Base 3	1020202000002₃	1020202202022₃
Base 4	2202020321₄	2202101123₄
Base 5	132222441₅	132232132₅
Base 6	22122345₆	22125055₆
Base 7	5434133₇	5435543₇
Base 8	2421071₈	2422133₈
Base 9	1222002₉	1222668₉
Base 10	664121₁₀	664667₁₀
Base 11	413a67₁₁	414413₁₁
Base 12	2803b5₁₂	28078b₁₂
Base 13	1a3393₁₃	1a36c3₁₃
Base 14	134053₁₄	134323₁₄
Base 15	d1b9b₁₅	d1e12₁₅
Base 16	a2239₁₆	a245b₁₆