Compare 640121 vs 640231

Property	640121	640231
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640121¹	640231¹
Prime factorization	640121	640231
Divisors count	2	2
Divisors	1, 640121	1, 640231
Number of properties	4	2
Chen primes	20382nd
Isolated primes	40823rd
Primes	52086th	52096th
Sexy primes (1st member)	11286th
Twin primes (2nd member)		5634th
Roman numberals
Base 2	10011100010001111001₂	10011100010011100111₂
Base 3	1012112002012₃	1012112020021₃
Base 4	2130101321₄	2130103213₄
Base 5	130440441₅	130441411₅
Base 6	21415305₆	21420011₆
Base 7	5304146₇	5304364₇
Base 8	2342171₈	2342347₈
Base 9	1175065₉	1175207₉
Base 10	640121₁₀	640231₁₀
Base 11	3a7a29₁₁	3a8019₁₁
Base 12	26a535₁₂	26a607₁₂
Base 13	195491₁₃	195547₁₃
Base 14	1293cd₁₄	12946b₁₄
Base 15	c99eb₁₅	c9a71₁₅
Base 16	9c479₁₆	9c4e7₁₆