Compare 642638 vs 642640

Property	642638	642640
Type	semiprime	composite number
Unique factors	2	4
Total factors	2	7
Prime factorization	2¹ × 321319¹	2⁴ × 5¹ × 29¹ × 277¹
Prime factorization	2 × 321319	2 × 2 × 2 × 2 × 5 × 29 × 277
Divisors count	4	40
Divisors	1, 2, 321319, 642638	1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 277, 290, 464, 554, 580, 1108, 1160, 1385, 2216, 2320, 2770, 4432, 5540, 8033, 11080, 16066, 22160, 32132, 40165, 64264, 80330, 128528, 160660, 321320, 642640
Number of properties	1	0
Semiprimes	137694th
Roman numberals
Base 2	10011100111001001110₂	10011100111001010000₂
Base 3	1012122112102₃	1012122112111₃
Base 4	2130321032₄	2130321100₄
Base 5	131031023₅	131031030₅
Base 6	21435102₆	21435104₆
Base 7	5314403₇	5314405₇
Base 8	2347116₈	2347120₈
Base 9	1178472₉	1178474₉
Base 10	642638₁₀	642640₁₀
Base 11	3a9907₁₁	3a9909₁₁
Base 12	26ba92₁₂	26ba94₁₂
Base 13	196679₁₃	19667b₁₃
Base 14	12a2aa₁₄	12a2ac₁₄
Base 15	ca628₁₅	ca62a₁₅
Base 16	9ce4e₁₆	9ce50₁₆