Compare 639857 vs 639949

Property	639857	639949
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	639857¹	639949¹
Prime factorization	639857	639949
Divisors count	2	2
Divisors	1, 639857	1, 639949
Number of properties	6	3
Chen primes	20372nd
Cousin primes (2nd member)	5629th
Isolated primes	40805th	40810th
Primes	52066th	52071st
Prime triplets (3rd member)	2062nd
Sexy primes (2nd member)	11284th
Ulam primes		3816th
Roman numberals
Base 2	10011100001101110001₂	10011100001111001101₂
Base 3	1012111201102₃	1012111211211₃
Base 4	2130031301₄	2130033031₄
Base 5	130433412₅	130434244₅
Base 6	21414145₆	21414421₆
Base 7	5303321₇	5303512₇
Base 8	2341561₈	2341715₈
Base 9	1174642₉	1174754₉
Base 10	639857₁₀	639949₁₀
Base 11	3a7809₁₁	3a7892₁₁
Base 12	26a355₁₂	26a411₁₂
Base 13	19531a₁₃	19538b₁₃
Base 14	129281₁₄	129309₁₄
Base 15	c98c2₁₅	c9934₁₅
Base 16	9c371₁₆	9c3cd₁₆