A050689 - cp's OEIS frontend

A050689 Composites whose sum of digits equals number of its prime factors, with multiplicity.

n	a(n)
1	12
2	30
3	32
4	40
5	102
6	220
7	240
8	500
9	600
10	1002
11	1012
12	1104
13	1152
14	1210
15	1320
16	1500
17	2001
18	2002
19	2020
20	2040
21	2120
22	2240
23	2300
24	3010
25	3040
26	3300
27	4032
28	4100
29	4320
30	5100
31	5200
32	6400
33	7000
34	7200
35	10001
36	10002
37	10011
38	10030
39	10040
40	10080
41	10140
42	10220
43	10304
44	10800

[12, 30, 32, 40, 102, 220, 240, 500, 600, 1002, 1012, 1104, 1152, 1210, 1320, 1500, 2001, 2002, 2020, 2040, 2120, 2240, 2300, 3010, 3040, 3300, 4032, 4100, 4320, 5100, 5200, 6400, 7000, 7200, 10001, 10002, 10011, 10030, 10040, 10080, 10140, 10220, 10304, 10800]

cp's OEIS Frontend

A050689 Composites whose sum of digits equals number of its prime factors, with multiplicity.

Table of values

List of values