Compare 640121 vs 640771

Property	640121	640771
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640121¹	640771¹
Prime factorization	640121	640771
Divisors count	2	2
Divisors	1, 640121	1, 640771
Number of properties	4	3
Chen primes	20382nd
Isolated primes	40823rd	40857th
Primes	52086th	52132nd
Sexy primes (1st member)	11286th	11295th
Roman numberals
Base 2	10011100010001111001₂	10011100011100000011₂
Base 3	1012112002012₃	1012112222021₃
Base 4	2130101321₄	2130130003₄
Base 5	130440441₅	131001041₅
Base 6	21415305₆	21422311₆
Base 7	5304146₇	5306065₇
Base 8	2342171₈	2343403₈
Base 9	1175065₉	1175867₉
Base 10	640121₁₀	640771₁₀
Base 11	3a7a29₁₁	3a846a₁₁
Base 12	26a535₁₂	26a997₁₂
Base 13	195491₁₃	195871₁₃
Base 14	1293cd₁₄	129735₁₄
Base 15	c99eb₁₅	c9cd1₁₅
Base 16	9c479₁₆	9c703₁₆