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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A182749 a(n) = the smallest multiple of n with n digits and exactly n divisors. a(n) = 0 if no such number exists.

Table of values

n a(n)
1 1
2 0
3 0
4 0
5 0
6 0
7 0
8 10000024
9 100580841
10 0
11 25937424601
12 100000000068
13 0
14 0
15 0
16 1000000000001152
17 0
18 100000000000000404
19 0
20 10000000000000000880
21 0
22 0
23 0
24 100000000000000000001184
25 1000060001350013500050625
26 0
27 100000000015460000000597529
28 1000000000000000000000022464

List of values

[1, 0, 0, 0, 0, 0, 0, 10000024, 100580841, 0, 25937424601, 100000000068, 0, 0, 0, 1000000000001152, 0, 100000000000000404, 0, 10000000000000000880, 0, 0, 0, 100000000000000000001184, 1000060001350013500050625, 0, 100000000015460000000597529, 1000000000000000000000022464]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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