Compare 640307 vs 641387

Property	640307	641387
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640307¹	641387¹
Prime factorization	640307	641387
Divisors count	2	2
Divisors	1, 640307	1, 641387
Number of properties	5	4
Additive primes		20392nd
Chen primes	20390th
Cousin primes (2nd member)	5634th
Isolated primes	40833rd	40898th
Primes	52104th	52175th
Safe primes	3019th	3023rd
Roman numberals
Base 2	10011100010100110011₂	10011100100101101011₂
Base 3	1012112100002₃	1012120211002₃
Base 4	2130110303₄	2130211223₄
Base 5	130442212₅	131011022₅
Base 6	21420215₆	21425215₆
Base 7	5304533₇	5310635₇
Base 8	2342463₈	2344553₈
Base 9	1175302₉	1176732₉
Base 10	640307₁₀	641387₁₀
Base 11	3a8088₁₁	3a897a₁₁
Base 12	26a66b₁₂	26b20b₁₂
Base 13	1955a5₁₃	195c26₁₃
Base 14	1294c3₁₄	129a55₁₄
Base 15	c9ac2₁₅	ca092₁₅
Base 16	9c533₁₆	9c96b₁₆