Compare 666647 vs 666769

Property	666647	666769
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	666647¹	666769¹
Prime factorization	666647	666769
Divisors count	2	2
Divisors	1, 666647	1, 666769
Number of properties	6	3
Chen primes	21139th
Cousin primes (1st member)		5833rd
Cousin primes (2nd member)	5830th
Isolated primes		42405th
Primes	54068th	54080th
Prime triplets (2nd member)	2130th
Safe primes	3122nd
Twin primes (1st member)	5837th
Roman numberals
Base 2	10100010110000010111₂	10100010110010010001₂
Base 3	1020212110122₃	1020212122011₃
Base 4	2202300113₄	2202302101₄
Base 5	132313042₅	132314034₅
Base 6	22142155₆	22142521₆
Base 7	5444402₇	5444635₇
Base 8	2426027₈	2426221₈
Base 9	1225418₉	1225564₉
Base 10	666647₁₀	666769₁₀
Base 11	415953₁₁	415a54₁₁
Base 12	28195b₁₂	281a41₁₂
Base 13	1a4587₁₃	1a464c₁₃
Base 14	134d39₁₄	134dc5₁₄
Base 15	d27d2₁₅	d2864₁₅
Base 16	a2c17₁₆	a2c91₁₆