Compare 666989 vs 667021

Property	666989	667021
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	666989¹	667021¹
Prime factorization	666989	667021
Divisors count	2	2
Divisors	1, 666989	1, 667021
Number of properties	4	2
Chen primes	21147th
Isolated primes	42418th
Primes	54095th	54098th
Sexy primes (2nd member)	11671st
Twin primes (2nd member)		5840th
Roman numberals
Base 2	10100010110101101101₂	10100010110110001101₂
Base 3	1020212221022₃	1020212222111₃
Base 4	2202311231₄	2202312031₄
Base 5	132320424₅	132321041₅
Base 6	22143525₆	22144021₆
Base 7	5445401₇	5445445₇
Base 8	2426555₈	2426615₈
Base 9	1225838₉	1225874₉
Base 10	666989₁₀	667021₁₀
Base 11	416134₁₁	416163₁₁
Base 12	281ba5₁₂	282011₁₂
Base 13	1a478b₁₃	1a47b4₁₃
Base 14	135101₁₄	135125₁₄
Base 15	d295e₁₅	d2981₁₅
Base 16	a2d6d₁₆	a2d8d₁₆