Compare 639697 vs 639857

Property	639697	639857
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	639697¹	639857¹
Prime factorization	639697	639857
Divisors count	2	2
Divisors	1, 639697	1, 639857
Number of properties	5	6
Chen primes		20372nd
Cousin primes (1st member)	5628th
Cousin primes (2nd member)		5629th
Isolated primes	40797th	40805th
Primes	52054th	52066th
Prime triplets (1st member)	2061st
Prime triplets (3rd member)		2062nd
Sexy primes (1st member)	11281st
Sexy primes (2nd member)		11284th
Roman numberals
Base 2	10011100001011010001₂	10011100001101110001₂
Base 3	1012111111111₃	1012111201102₃
Base 4	2130023101₄	2130031301₄
Base 5	130432242₅	130433412₅
Base 6	21413321₆	21414145₆
Base 7	5303002₇	5303321₇
Base 8	2341321₈	2341561₈
Base 9	1174444₉	1174642₉
Base 10	639697₁₀	639857₁₀
Base 11	3a7683₁₁	3a7809₁₁
Base 12	26a241₁₂	26a355₁₂
Base 13	195226₁₃	19531a₁₃
Base 14	1291a9₁₄	129281₁₄
Base 15	c9817₁₅	c98c2₁₅
Base 16	9c2d1₁₆	9c371₁₆