Compare 640249 vs 640369

Property	640249	640369
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640249¹	640369¹
Prime factorization	640249	640369
Divisors count	2	2
Divisors	1, 640249	1, 640369
Number of properties	3	4
Isolated primes		40836th
Lucky primes		5982nd
Primes	52098th	52107th
Sexy primes (2nd member)		11289th
Twin primes (2nd member)	5635th
Ulam primes	3819th
Roman numberals
Base 2	10011100010011111001₂	10011100010101110001₂
Base 3	1012112020221₃	1012112102101₃
Base 4	2130103321₄	2130111301₄
Base 5	130441444₅	130442434₅
Base 6	21420041₆	21420401₆
Base 7	5304421₇	5304652₇
Base 8	2342371₈	2342561₈
Base 9	1175227₉	1175371₉
Base 10	640249₁₀	640369₁₀
Base 11	3a8035₁₁	3a8134₁₁
Base 12	26a621₁₂	26a701₁₂
Base 13	19555c₁₃	195622₁₃
Base 14	129481₁₄	129529₁₄
Base 15	c9a84₁₅	c9b14₁₅
Base 16	9c4f9₁₆	9c571₁₆