Compare 640007 vs 640667

Property	640007	640667
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640007¹	640667¹
Prime factorization	640007	640667
Divisors count	2	2
Divisors	1, 640007	1, 640667
Number of properties	5	6
Additive primes	20350th	20371st
Chen primes	20377th	20395th
Cousin primes (2nd member)		5636th
Primes	52075th	52125th
Prime triplets (2nd member)		2063rd
Twin primes (1st member)	5632nd	5638th
Ulam primes	3817th
Roman numberals
Base 2	10011100010000000111₂	10011100011010011011₂
Base 3	1012111220222₃	1012112211102₃
Base 4	2130100013₄	2130122123₄
Base 5	130440012₅	131000132₅
Base 6	21414555₆	21422015₆
Base 7	5303624₇	5305556₇
Base 8	2342007₈	2343233₈
Base 9	1174828₉	1175742₉
Base 10	640007₁₀	640667₁₀
Base 11	3a7935₁₁	3a8385₁₁
Base 12	26a45b₁₂	26a90b₁₂
Base 13	195404₁₃	1957c1₁₃
Base 14	12934b₁₄	12969d₁₄
Base 15	c9972₁₅	c9c62₁₅
Base 16	9c407₁₆	9c69b₁₆