Compare 840 vs 842

Property	840	842
Type	composite number	semiprime
Unique factors	4	2
Total factors	6	2
Prime factorization	2³ × 3¹ × 5¹ × 7¹	2¹ × 421¹
Prime factorization	2 × 2 × 2 × 3 × 5 × 7	2 × 421
Divisors count	32	4
Divisors	1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840	1, 2, 421, 842
Number of properties	0	1
Semiprimes		254th
Roman numberals	DCCCXL	DCCCXLII
Base 2	1101001000₂	1101001010₂
Base 3	1011010₃	1011012₃
Base 4	31020₄	31022₄
Base 5	11330₅	11332₅
Base 6	3520₆	3522₆
Base 7	2310₇	2312₇
Base 8	1510₈	1512₈
Base 9	1133₉	1135₉
Base 10	840₁₀	842₁₀
Base 11	6a4₁₁	6a6₁₁
Base 12	5a0₁₂	5a2₁₂
Base 13	4c8₁₃	4ca₁₃
Base 14	440₁₄	442₁₄
Base 15	3b0₁₅	3b2₁₅
Base 16	348₁₆	34a₁₆