Compare 990420 vs 990421

Property	990420	990421
Type	composite number	semiprime
Unique factors	5	2
Total factors	6	2
Prime factorization	2² × 3¹ × 5¹ × 17¹ × 971¹	521¹ × 1901¹
Prime factorization	2 × 2 × 3 × 5 × 17 × 971	521 × 1901
Divisors count	48	4
Divisors	1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 971, 1020, 1942, 2913, 3884, 4855, 5826, 9710, 11652, 14565, 16507, 19420, 29130, 33014, 49521, 58260, 66028, 82535, 99042, 165070, 198084, 247605, 330140, 495210, 990420	1, 521, 1901, 990421
Number of properties	0	1
Semiprimes		208118th
Roman numberals
Base 2	11110001110011010100₂	11110001110011010101₂
Base 3	1212022121020₃	1212022121021₃
Base 4	3301303110₄	3301303111₄
Base 5	223143140₅	223143141₅
Base 6	33121140₆	33121141₆
Base 7	11263344₇	11263345₇
Base 8	3616324₈	3616325₈
Base 9	1768536₉	1768537₉
Base 10	990420₁₀	990421₁₀
Base 11	617132₁₁	617133₁₁
Base 12	3b91b0₁₂	3b91b1₁₂
Base 13	288a62₁₃	288a63₁₃
Base 14	1bad24₁₄	1bad25₁₄
Base 15	1486d0₁₅	1486d1₁₅
Base 16	f1cd4₁₆	f1cd5₁₆