Compare 640247 vs 640727

Property	640247	640727
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640247¹	640727¹
Prime factorization	640247	640727
Divisors count	2	2
Divisors	1, 640247	1, 640727
Number of properties	5	4
Additive primes	20362nd
Chen primes	20388th	20398th
Isolated primes		40854th
Primes	52097th	52129th
Sexy primes (1st member)		11294th
Twin primes (1st member)	5635th
Ulam primes	3818th
Roman numberals
Base 2	10011100010011110111₂	10011100011011010111₂
Base 3	1012112020212₃	1012112220122₃
Base 4	2130103313₄	2130123113₄
Base 5	130441442₅	131000402₅
Base 6	21420035₆	21422155₆
Base 7	5304416₇	5306003₇
Base 8	2342367₈	2343327₈
Base 9	1175225₉	1175818₉
Base 10	640247₁₀	640727₁₀
Base 11	3a8033₁₁	3a842a₁₁
Base 12	26a61b₁₂	26a95b₁₂
Base 13	19555a₁₃	195839₁₃
Base 14	12947d₁₄	129703₁₄
Base 15	c9a82₁₅	c9ca2₁₅
Base 16	9c4f7₁₆	9c6d7₁₆