Compare 640247 vs 640307

Property	640247	640307
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640247¹	640307¹
Prime factorization	640247	640307
Divisors count	2	2
Divisors	1, 640247	1, 640307
Number of properties	5	5
Additive primes	20362nd
Chen primes	20388th	20390th
Cousin primes (2nd member)		5634th
Isolated primes		40833rd
Primes	52097th	52104th
Safe primes		3019th
Twin primes (1st member)	5635th
Ulam primes	3818th
Roman numberals
Base 2	10011100010011110111₂	10011100010100110011₂
Base 3	1012112020212₃	1012112100002₃
Base 4	2130103313₄	2130110303₄
Base 5	130441442₅	130442212₅
Base 6	21420035₆	21420215₆
Base 7	5304416₇	5304533₇
Base 8	2342367₈	2342463₈
Base 9	1175225₉	1175302₉
Base 10	640247₁₀	640307₁₀
Base 11	3a8033₁₁	3a8088₁₁
Base 12	26a61b₁₂	26a66b₁₂
Base 13	19555a₁₃	1955a5₁₃
Base 14	12947d₁₄	1294c3₁₄
Base 15	c9a82₁₅	c9ac2₁₅
Base 16	9c4f7₁₆	9c533₁₆