Compare 639949 vs 640853

Property	639949	640853
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	639949¹	640853¹
Prime factorization	639949	640853
Divisors count	2	2
Divisors	1, 639949	1, 640853
Number of properties	3	6
Isolated primes	40810th	40862nd
Primes	52071st	52137th
Sexy primes (1st member)		11297th
Sexy primes (2nd member)		11296th
Sexy prime triplets (2nd member)		2072nd
Ulam primes	3816th	3820th
Roman numberals
Base 2	10011100001111001101₂	10011100011101010101₂
Base 3	1012111211211₃	1012120002022₃
Base 4	2130033031₄	2130131111₄
Base 5	130434244₅	131001403₅
Base 6	21414421₆	21422525₆
Base 7	5303512₇	5306243₇
Base 8	2341715₈	2343525₈
Base 9	1174754₉	1176068₉
Base 10	639949₁₀	640853₁₀
Base 11	3a7892₁₁	3a8534₁₁
Base 12	26a411₁₂	26aa45₁₂
Base 13	19538b₁₃	195905₁₃
Base 14	129309₁₄	129793₁₄
Base 15	c9934₁₅	c9d38₁₅
Base 16	9c3cd₁₆	9c755₁₆