Compare 639857 vs 640121

Property	639857	640121
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	639857¹	640121¹
Prime factorization	639857	640121
Divisors count	2	2
Divisors	1, 639857	1, 640121
Number of properties	6	4
Chen primes	20372nd	20382nd
Cousin primes (2nd member)	5629th
Isolated primes	40805th	40823rd
Primes	52066th	52086th
Prime triplets (3rd member)	2062nd
Sexy primes (1st member)		11286th
Sexy primes (2nd member)	11284th
Roman numberals
Base 2	10011100001101110001₂	10011100010001111001₂
Base 3	1012111201102₃	1012112002012₃
Base 4	2130031301₄	2130101321₄
Base 5	130433412₅	130440441₅
Base 6	21414145₆	21415305₆
Base 7	5303321₇	5304146₇
Base 8	2341561₈	2342171₈
Base 9	1174642₉	1175065₉
Base 10	639857₁₀	640121₁₀
Base 11	3a7809₁₁	3a7a29₁₁
Base 12	26a355₁₂	26a535₁₂
Base 13	19531a₁₃	195491₁₃
Base 14	129281₁₄	1293cd₁₄
Base 15	c98c2₁₅	c99eb₁₅
Base 16	9c371₁₆	9c479₁₆