Compare 640249 vs 640253

Property	640249	640253
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	640249¹	149¹ × 4297¹
Prime factorization	640249	149 × 4297
Divisors count	2	4
Divisors	1, 640249	1, 149, 4297, 640253
Number of properties	3	1
Primes	52098th
Semiprimes		137195th
Twin primes (2nd member)	5635th
Ulam primes	3819th
Roman numberals
Base 2	10011100010011111001₂	10011100010011111101₂
Base 3	1012112020221₃	1012112021002₃
Base 4	2130103321₄	2130103331₄
Base 5	130441444₅	130442003₅
Base 6	21420041₆	21420045₆
Base 7	5304421₇	5304425₇
Base 8	2342371₈	2342375₈
Base 9	1175227₉	1175232₉
Base 10	640249₁₀	640253₁₀
Base 11	3a8035₁₁	3a8039₁₁
Base 12	26a621₁₂	26a625₁₂
Base 13	19555c₁₃	195563₁₃
Base 14	129481₁₄	129485₁₄
Base 15	c9a84₁₅	c9a88₁₅
Base 16	9c4f9₁₆	9c4fd₁₆