Compare 640249 vs 640963

Property	640249	640963
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640249¹	640963¹
Prime factorization	640249	640963
Divisors count	2	2
Divisors	1, 640249	1, 640963
Number of properties	3	6
Cousin primes (1st member)		5638th
Isolated primes		40873rd
Lucky primes		5983rd
Primes	52098th	52148th
Sexy primes (2nd member)		11300th
Twin primes (2nd member)	5635th
Ulam primes	3819th	3823rd
Roman numberals
Base 2	10011100010011111001₂	10011100011111000011₂
Base 3	1012112020221₃	1012120020101₃
Base 4	2130103321₄	2130133003₄
Base 5	130441444₅	131002323₅
Base 6	21420041₆	21423231₆
Base 7	5304421₇	5306461₇
Base 8	2342371₈	2343703₈
Base 9	1175227₉	1176211₉
Base 10	640249₁₀	640963₁₀
Base 11	3a8035₁₁	3a8624₁₁
Base 12	26a621₁₂	26ab17₁₂
Base 13	19555c₁₃	19598b₁₃
Base 14	129481₁₄	129831₁₄
Base 15	c9a84₁₅	c9dad₁₅
Base 16	9c4f9₁₆	9c7c3₁₆