196 (number)
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196 is a natural number following 195 and preceding 197. It is the square of 14. In addition to being a square number, it is also an 11-gonal number, a 34-gonal number, a heptagonal pyramidal number, and a pentagonal pyramidal number.
| |||
| Ordinal | One hundred [and] ninety-six | ||
| Cardinal | 196th | ||
| Factorization | [2^2 \cdot 7^2] | ||
| Roman numeral | CXCVI | ||
| Binary | 11000100 | ||
| Hexadecimal | C4 | ||
According to a conjecture, 196 is the lowest Lychrel number, or the lowest number which is not known to produce a palindromic number by reversal and addition of the digits. For example, if you add 106 to the reverse of its digits, 601, you get 707, which is a palindrome. But with 196, you get 196 + 691 = 887, which is not a palindrome. Neither is 887 + 788 = 1675. This operation has been repeated almost 700 million times without finding a palindrome, but no one has ever proven that it will never produce one.
Written in fonts with text figures, 196 uses each possible x-height: 
.
In other fields
- Interstate 196 is a long spur route of Interstate 96 in Michigan.
- The year 196.
Reference
- Wells, D. (1987). The Penguin Dictionary of Curious and Interesting Numbers (pp. 142 - 143). London: Penguin Group.
External links
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