Compare 640039 vs 641521

Property	640039	641521
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640039¹	641521¹
Prime factorization	640039	641521
Divisors count	2	2
Divisors	1, 640039	1, 641521
Number of properties	4	4
Additive primes		20398th
Cousin primes (1st member)	5632nd
Isolated primes	40816th
Lucky primes	5979th	5990th
Primes	52079th	52188th
Twin primes (2nd member)		5641st
Roman numberals
Base 2	10011100010000100111₂	10011100100111110001₂
Base 3	1012111222011₃	1012121000001₃
Base 4	2130100213₄	2130213301₄
Base 5	130440124₅	131012041₅
Base 6	21415051₆	21430001₆
Base 7	5304001₇	5311216₇
Base 8	2342047₈	2344761₈
Base 9	1174864₉	1177001₉
Base 10	640039₁₀	641521₁₀
Base 11	3a7964₁₁	3a8a91₁₁
Base 12	26a487₁₂	26b301₁₂
Base 13	19542a₁₃	195cca₁₃
Base 14	129371₁₄	129b0d₁₄
Base 15	c9994₁₅	ca131₁₅
Base 16	9c427₁₆	9c9f1₁₆