Compare 666989 vs 667129

Property	666989	667129
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	666989¹	667129¹
Prime factorization	666989	667129
Divisors count	2	2
Divisors	1, 666989	1, 667129
Number of properties	4	5
Additive primes		21121st
Chen primes	21147th
Isolated primes	42418th
Primes	54095th	54104th
Prime triplets (3rd member)		2131st
Sexy primes (2nd member)	11671st	11673rd
Twin primes (2nd member)		5841st
Roman numberals
Base 2	10100010110101101101₂	10100010110111111001₂
Base 3	1020212221022₃	1020220010111₃
Base 4	2202311231₄	2202313321₄
Base 5	132320424₅	132322004₅
Base 6	22143525₆	22144321₆
Base 7	5445401₇	5445661₇
Base 8	2426555₈	2426771₈
Base 9	1225838₉	1226114₉
Base 10	666989₁₀	667129₁₀
Base 11	416134₁₁	416251₁₁
Base 12	281ba5₁₂	2820a1₁₂
Base 13	1a478b₁₃	1a4868₁₃
Base 14	135101₁₄	1351a1₁₄
Base 15	d295e₁₅	d2a04₁₅
Base 16	a2d6d₁₆	a2df9₁₆