Compare 666989 vs 667421

Property	666989	667421
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	666989¹	667421¹
Prime factorization	666989	667421
Divisors count	2	2
Divisors	1, 666989	1, 667421
Number of properties	4	7
Chen primes	21147th	21156th
Cousin primes (2nd member)		5837th
Isolated primes	42418th
Primes	54095th	54123rd
Prime triplets (1st member)		2134th
Prime triplets (2nd member)		2133rd
Sexy primes (1st member)		11676th
Sexy primes (2nd member)	11671st
Twin primes (1st member)		5844th
Roman numberals
Base 2	10100010110101101101₂	10100010111100011101₂
Base 3	1020212221022₃	1020220112022₃
Base 4	2202311231₄	2202330131₄
Base 5	132320424₅	132324141₅
Base 6	22143525₆	22145525₆
Base 7	5445401₇	5446556₇
Base 8	2426555₈	2427435₈
Base 9	1225838₉	1226468₉
Base 10	666989₁₀	667421₁₀
Base 11	416134₁₁	416497₁₁
Base 12	281ba5₁₂	2822a5₁₂
Base 13	1a478b₁₃	1a4a31₁₃
Base 14	135101₁₄	13532d₁₄
Base 15	d295e₁₅	d2b4b₁₅
Base 16	a2d6d₁₆	a2f1d₁₆