Compare 640667 vs 640771

Property	640667	640771
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640667¹	640771¹
Prime factorization	640667	640771
Divisors count	2	2
Divisors	1, 640667	1, 640771
Number of properties	6	3
Additive primes	20371st
Chen primes	20395th
Cousin primes (2nd member)	5636th
Isolated primes		40857th
Primes	52125th	52132nd
Prime triplets (2nd member)	2063rd
Sexy primes (1st member)		11295th
Twin primes (1st member)	5638th
Roman numberals
Base 2	10011100011010011011₂	10011100011100000011₂
Base 3	1012112211102₃	1012112222021₃
Base 4	2130122123₄	2130130003₄
Base 5	131000132₅	131001041₅
Base 6	21422015₆	21422311₆
Base 7	5305556₇	5306065₇
Base 8	2343233₈	2343403₈
Base 9	1175742₉	1175867₉
Base 10	640667₁₀	640771₁₀
Base 11	3a8385₁₁	3a846a₁₁
Base 12	26a90b₁₂	26a997₁₂
Base 13	1957c1₁₃	195871₁₃
Base 14	12969d₁₄	129735₁₄
Base 15	c9c62₁₅	c9cd1₁₅
Base 16	9c69b₁₆	9c703₁₆