Compare 639985 vs 640047

Property	639985	640047
Type	semiprime	semiprime
Unique factors	2	2
Total factors	2	2
Prime factorization	5¹ × 127997¹	3¹ × 213349¹
Prime factorization	5 × 127997	3 × 213349
Divisors count	4	4
Divisors	1, 5, 127997, 639985	1, 3, 213349, 640047
Number of properties	1	1
Semiprimes	137143rd	137153rd
Roman numberals
Base 2	10011100001111110001₂	10011100010000101111₂
Base 3	1012111220011₃	1012111222110₃
Base 4	2130033301₄	2130100233₄
Base 5	130434420₅	130440142₅
Base 6	21414521₆	21415103₆
Base 7	5303563₇	5304012₇
Base 8	2341761₈	2342057₈
Base 9	1174804₉	1174873₉
Base 10	639985₁₀	640047₁₀
Base 11	3a7915₁₁	3a7971₁₁
Base 12	26a441₁₂	26a493₁₂
Base 13	1953b8₁₃	195435₁₃
Base 14	129333₁₄	129379₁₄
Base 15	c995a₁₅	c999c₁₅
Base 16	9c3f1₁₆	9c42f₁₆