Compare 642638 vs 642642

Property	642638	642642
Type	semiprime	composite number
Unique factors	2	6
Total factors	2	6
Prime factorization	2¹ × 321319¹	2¹ × 3¹ × 7¹ × 11¹ × 13¹ × 107¹
Prime factorization	2 × 321319	2 × 3 × 7 × 11 × 13 × 107
Divisors count	4	64
Divisors	1, 2, 321319, 642638	1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 33, 39, 42, 66, 77, 78, 91, 107, 143, 154, 182, 214, 231, 273, 286, 321, 429, 462, 546, 642, 749, 858, 1001, 1177, 1391, 1498, 2002, 2247, 2354, 2782, 3003, 3531, 4173, 4494, 6006, 7062, 8239, 8346, 9737, 15301, 16478, 19474, 24717, 29211, 30602, 45903, 49434, 58422, 91806, 107107, 214214, 321321, 642642
Number of properties	1	0
Semiprimes	137694th
Roman numberals
Base 2	10011100111001001110₂	10011100111001010010₂
Base 3	1012122112102₃	1012122112120₃
Base 4	2130321032₄	2130321102₄
Base 5	131031023₅	131031032₅
Base 6	21435102₆	21435110₆
Base 7	5314403₇	5314410₇
Base 8	2347116₈	2347122₈
Base 9	1178472₉	1178476₉
Base 10	642638₁₀	642642₁₀
Base 11	3a9907₁₁	3a9910₁₁
Base 12	26ba92₁₂	26ba96₁₂
Base 13	196679₁₃	196680₁₃
Base 14	12a2aa₁₄	12a2b0₁₄
Base 15	ca628₁₅	ca62c₁₅
Base 16	9ce4e₁₆	9ce52₁₆