Compare 661439 vs 664199

Property	661439	664199
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	661439¹	664199¹
Prime factorization	661439	664199
Divisors count	2	2
Divisors	1, 661439	1, 664199
Number of properties	5	5
Additive primes	20957th
Chen primes		21074th
Isolated primes	42097th	42252nd
Primes	53680th	53885th
Safe primes	3100th	3110th
Sexy primes (2nd member)		11632nd
Ulam primes	3940th
Roman numberals
Base 2	10100001011110111111₂	10100010001010000111₂
Base 3	1020121022202₃	1020202002222₃
Base 4	2201132333₄	2202022013₄
Base 5	132131224₅	132223244₅
Base 6	22102115₆	22122555₆
Base 7	5423252₇	5434304₇
Base 8	2413677₈	2421207₈
Base 9	1217282₉	1222088₉
Base 10	661439₁₀	664199₁₀
Base 11	411a49₁₁	414028₁₁
Base 12	27a93b₁₂	28045b₁₂
Base 13	1a20ac₁₃	1a3423₁₃
Base 14	133099₁₄	1340ab₁₄
Base 15	d0eae₁₅	d1bee₁₅
Base 16	a17bf₁₆	a2287₁₆