Compare 642442 vs 642447

Property	642442	642447
Type	semiprime	composite number
Unique factors	2	4
Total factors	2	6
Prime factorization	2¹ × 321221¹	3² × 13¹ × 17² × 19¹
Prime factorization	2 × 321221	3 × 3 × 13 × 17 × 17 × 19
Divisors count	4	36
Divisors	1, 2, 321221, 642442	1, 3, 9, 13, 17, 19, 39, 51, 57, 117, 153, 171, 221, 247, 289, 323, 663, 741, 867, 969, 1989, 2223, 2601, 2907, 3757, 4199, 5491, 11271, 12597, 16473, 33813, 37791, 49419, 71383, 214149, 642447
Number of properties	1	0
Semiprimes	137650th
Roman numberals
Base 2	10011100110110001010₂	10011100110110001111₂
Base 3	1012122021011₃	1012122021100₃
Base 4	2130312022₄	2130312033₄
Base 5	131024232₅	131024242₅
Base 6	21434134₆	21434143₆
Base 7	5314003₇	5314011₇
Base 8	2346612₈	2346617₈
Base 9	1178234₉	1178240₉
Base 10	642442₁₀	642447₁₀
Base 11	3a9749₁₁	3a9753₁₁
Base 12	26b94a₁₂	26b953₁₂
Base 13	196558₁₃	196560₁₃
Base 14	12a1aa₁₄	12a1b1₁₄
Base 15	ca547₁₅	ca54c₁₅
Base 16	9cd8a₁₆	9cd8f₁₆