Compare 640247 vs 640369

Property	640247	640369
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640247¹	640369¹
Prime factorization	640247	640369
Divisors count	2	2
Divisors	1, 640247	1, 640369
Number of properties	5	4
Additive primes	20362nd
Chen primes	20388th
Isolated primes		40836th
Lucky primes		5982nd
Primes	52097th	52107th
Sexy primes (2nd member)		11289th
Twin primes (1st member)	5635th
Ulam primes	3818th
Roman numberals
Base 2	10011100010011110111₂	10011100010101110001₂
Base 3	1012112020212₃	1012112102101₃
Base 4	2130103313₄	2130111301₄
Base 5	130441442₅	130442434₅
Base 6	21420035₆	21420401₆
Base 7	5304416₇	5304652₇
Base 8	2342367₈	2342561₈
Base 9	1175225₉	1175371₉
Base 10	640247₁₀	640369₁₀
Base 11	3a8033₁₁	3a8134₁₁
Base 12	26a61b₁₂	26a701₁₂
Base 13	19555a₁₃	195622₁₃
Base 14	12947d₁₄	129529₁₄
Base 15	c9a82₁₅	c9b14₁₅
Base 16	9c4f7₁₆	9c571₁₆