Compare 639911 vs 640121

Property	639911	640121
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	639911¹	640121¹
Prime factorization	639911	640121
Divisors count	2	2
Divisors	1, 639911	1, 640121
Number of properties	6	4
Additive primes	20346th
Chen primes	20373rd	20382nd
Cousin primes (2nd member)	5630th
Isolated primes	40807th	40823rd
Primes	52068th	52086th
Sexy primes (1st member)		11286th
Sophie germain primes	5306th
Roman numberals
Base 2	10011100001110100111₂	10011100010001111001₂
Base 3	1012111210102₃	1012112002012₃
Base 4	2130032213₄	2130101321₄
Base 5	130434121₅	130440441₅
Base 6	21414315₆	21415305₆
Base 7	5303426₇	5304146₇
Base 8	2341647₈	2342171₈
Base 9	1174712₉	1175065₉
Base 10	639911₁₀	640121₁₀
Base 11	3a7858₁₁	3a7a29₁₁
Base 12	26a39b₁₂	26a535₁₂
Base 13	19535c₁₃	195491₁₃
Base 14	1292bd₁₄	1293cd₁₄
Base 15	c990b₁₅	c99eb₁₅
Base 16	9c3a7₁₆	9c479₁₆