Compare 640039 vs 640121

Property	640039	640121
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640039¹	640121¹
Prime factorization	640039	640121
Divisors count	2	2
Divisors	1, 640039	1, 640121
Number of properties	4	4
Chen primes		20382nd
Cousin primes (1st member)	5632nd
Isolated primes	40816th	40823rd
Lucky primes	5979th
Primes	52079th	52086th
Sexy primes (1st member)		11286th
Roman numberals
Base 2	10011100010000100111₂	10011100010001111001₂
Base 3	1012111222011₃	1012112002012₃
Base 4	2130100213₄	2130101321₄
Base 5	130440124₅	130440441₅
Base 6	21415051₆	21415305₆
Base 7	5304001₇	5304146₇
Base 8	2342047₈	2342171₈
Base 9	1174864₉	1175065₉
Base 10	640039₁₀	640121₁₀
Base 11	3a7964₁₁	3a7a29₁₁
Base 12	26a487₁₂	26a535₁₂
Base 13	19542a₁₃	195491₁₃
Base 14	129371₁₄	1293cd₁₄
Base 15	c9994₁₅	c99eb₁₅
Base 16	9c427₁₆	9c479₁₆