| Display title | Happy number |
| Default sort key | Happy Number |
| Page length (in bytes) | 14,177 |
| Namespace ID | 0 |
| Page ID | 298953 |
| Page content language | en - English |
| Page content model | wikitext |
| Indexing by robots | Allowed |
| Number of redirects to this page | 1 |
| Counted as a content page | Yes |
| HandWiki item ID | None |
| Edit | Allow all users (infinite) |
| Move | Allow all users (infinite) |
| Page creator | imported>Jslovo |
| Date of page creation | 00:31, 7 February 2024 |
| Latest editor | imported>Jslovo |
| Date of latest edit | 00:31, 7 February 2024 |
| Total number of edits | 1 |
| Recent number of edits (within past 90 days) | 0 |
| Recent number of distinct authors | 0 |
Description | Content |
Article description: (description)
This attribute controls the content of the description and og:description elements. | In number theory, a happy number is a number which eventually reaches 1 when replaced by the sum of the square of each digit. For instance, 13 is a happy number because $ 1^{2}+3^{2}=10 $, and $ 1^{2}+0^{2}=1 $. On the other hand, 4 is not a happy number because the sequence starting with $ 4^{2}=16... |
