Compare 640943 vs 642739

Property	640943	642739
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640943¹	642739¹
Prime factorization	640943	642739
Divisors count	2	2
Divisors	1, 640943	1, 642739
Number of properties	6	4
Additive primes		20429th
Chen primes	20406th
Isolated primes	40870th
Primes	52145th	52269th
Safe primes	3021st
Sexy primes (1st member)	11299th
Twin primes (2nd member)		5653rd
Ulam primes	3822nd	3833rd
Roman numberals
Base 2	10011100011110101111₂	10011100111010110011₂
Base 3	1012120012122₃	1012122200011₃
Base 4	2130132233₄	2130322303₄
Base 5	131002233₅	131031424₅
Base 6	21423155₆	21435351₆
Base 7	5306432₇	5314606₇
Base 8	2343657₈	2347263₈
Base 9	1176178₉	1178604₉
Base 10	640943₁₀	642739₁₀
Base 11	3a8606₁₁	3a9999₁₁
Base 12	26aabb₁₂	26bb57₁₂
Base 13	195974₁₃	196726₁₃
Base 14	129819₁₄	12a33d₁₄
Base 15	c9d98₁₅	ca694₁₅
Base 16	9c7af₁₆	9ceb3₁₆