Compare 639987 vs 640047

Property	639987	640047
Type	semiprime	semiprime
Unique factors	2	2
Total factors	2	2
Prime factorization	3¹ × 213329¹	3¹ × 213349¹
Prime factorization	3 × 213329	3 × 213349
Divisors count	4	4
Divisors	1, 3, 213329, 639987	1, 3, 213349, 640047
Number of properties	1	1
Semiprimes	137145th	137153rd
Roman numberals
Base 2	10011100001111110011₂	10011100010000101111₂
Base 3	1012111220020₃	1012111222110₃
Base 4	2130033303₄	2130100233₄
Base 5	130434422₅	130440142₅
Base 6	21414523₆	21415103₆
Base 7	5303565₇	5304012₇
Base 8	2341763₈	2342057₈
Base 9	1174806₉	1174873₉
Base 10	639987₁₀	640047₁₀
Base 11	3a7917₁₁	3a7971₁₁
Base 12	26a443₁₂	26a493₁₂
Base 13	1953ba₁₃	195435₁₃
Base 14	129335₁₄	129379₁₄
Base 15	c995c₁₅	c999c₁₅
Base 16	9c3f3₁₆	9c42f₁₆