Compare 640021 vs 640047

Property	640021	640047
Type	semiprime	semiprime
Unique factors	2	2
Total factors	2	2
Prime factorization	23¹ × 27827¹	3¹ × 213349¹
Prime factorization	23 × 27827	3 × 213349
Divisors count	4	4
Divisors	1, 23, 27827, 640021	1, 3, 213349, 640047
Number of properties	1	1
Semiprimes	137148th	137153rd
Roman numberals
Base 2	10011100010000010101₂	10011100010000101111₂
Base 3	1012111221111₃	1012111222110₃
Base 4	2130100111₄	2130100233₄
Base 5	130440041₅	130440142₅
Base 6	21415021₆	21415103₆
Base 7	5303644₇	5304012₇
Base 8	2342025₈	2342057₈
Base 9	1174844₉	1174873₉
Base 10	640021₁₀	640047₁₀
Base 11	3a7948₁₁	3a7971₁₁
Base 12	26a471₁₂	26a493₁₂
Base 13	195415₁₃	195435₁₃
Base 14	12935b₁₄	129379₁₄
Base 15	c9981₁₅	c999c₁₅
Base 16	9c415₁₆	9c42f₁₆