Compare 639697 vs 639851

Property	639697	639851
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	639697¹	639851¹
Prime factorization	639697	639851
Divisors count	2	2
Divisors	1, 639697	1, 639851
Number of properties	5	6
Chen primes		20371st
Cousin primes (1st member)	5628th
Isolated primes	40797th
Primes	52054th	52064th
Prime triplets (1st member)	2061st	2062nd
Sexy primes (1st member)	11281st	11284th
Sophie germain primes		5305th
Twin primes (1st member)		5631st
Roman numberals
Base 2	10011100001011010001₂	10011100001101101011₂
Base 3	1012111111111₃	1012111201012₃
Base 4	2130023101₄	2130031223₄
Base 5	130432242₅	130433401₅
Base 6	21413321₆	21414135₆
Base 7	5303002₇	5303312₇
Base 8	2341321₈	2341553₈
Base 9	1174444₉	1174635₉
Base 10	639697₁₀	639851₁₀
Base 11	3a7683₁₁	3a7803₁₁
Base 12	26a241₁₂	26a34b₁₂
Base 13	195226₁₃	195314₁₃
Base 14	1291a9₁₄	129279₁₄
Base 15	c9817₁₅	c98bb₁₅
Base 16	9c2d1₁₆	9c36b₁₆