Compare 639491 vs 640901

Property	639491	640901
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	639491¹	640901¹
Prime factorization	639491	640901
Divisors count	2	2
Divisors	1, 639491	1, 640901
Number of properties	7	5
Chen primes	20357th	20403rd
Cousin primes (2nd member)	5627th
Good primes	1983rd
Isolated primes		40866th
Primes	52035th	52141st
Prime triplets (2nd member)	2060th
Sexy primes (1st member)		11298th
Sophie germain primes	5301st	5313th
Twin primes (1st member)	5627th
Roman numberals
Base 2	10011100001000000011₂	10011100011110000101₂
Base 3	1012111012212₃	1012120011002₃
Base 4	2130020003₄	2130132011₄
Base 5	130430431₅	131002101₅
Base 6	21412335₆	21423045₆
Base 7	5302256₇	5306342₇
Base 8	2341003₈	2343605₈
Base 9	1174185₉	1176132₉
Base 10	639491₁₀	640901₁₀
Base 11	3a7506₁₁	3a8578₁₁
Base 12	26a0ab₁₂	26aa85₁₂
Base 13	1950c8₁₃	195941₁₃
Base 14	12909d₁₄	1297c9₁₄
Base 15	c972b₁₅	c9d6b₁₅
Base 16	9c203₁₆	9c785₁₆