Compare 640019 vs 640043

Property	640019	640043
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640019¹	640043¹
Prime factorization	640019	640043
Divisors count	2	2
Divisors	1, 640019	1, 640043
Number of properties	4	5
Additive primes		20353rd
Chen primes	20379th
Cousin primes (2nd member)		5632nd
Isolated primes	40814th	40817th
Primes	52077th	52080th
Safe primes	3016th
Sexy primes (1st member)		11285th
Roman numberals
Base 2	10011100010000010011₂	10011100010000101011₂
Base 3	1012111221102₃	1012111222022₃
Base 4	2130100103₄	2130100223₄
Base 5	130440034₅	130440133₅
Base 6	21415015₆	21415055₆
Base 7	5303642₇	5304005₇
Base 8	2342023₈	2342053₈
Base 9	1174842₉	1174868₉
Base 10	640019₁₀	640043₁₀
Base 11	3a7946₁₁	3a7968₁₁
Base 12	26a46b₁₂	26a48b₁₂
Base 13	195413₁₃	195431₁₃
Base 14	129359₁₄	129375₁₄
Base 15	c997e₁₅	c9998₁₅
Base 16	9c413₁₆	9c42b₁₆