172 (number)
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Cardinal | one hundred seventy-two | |||
Ordinal | 172nd (one hundred seventy-second) | |||
Factorization | 22 × 43 | |||
Divisors | 1, 2, 4, 43, 86, 172 | |||
Greek numeral | ΡΟΒ´ | |||
Roman numeral | CLXXII | |||
Binary | 101011002 | |||
Ternary | 201013 | |||
Senary | 4446 | |||
Octal | 2548 | |||
Duodecimal | 12412 | |||
Hexadecimal | AC16 |
172 (one hundred [and] seventy-two) is the natural number following 171 and preceding 173.
In mathematics
[edit]172 is a part of a near-miss for being a counterexample to Fermat's last theorem, as 1353 + 1383 = 1723 − 1. This is only the third near-miss of this form, two cubes adding to one less than a third cube.[1] It is also a "thickened cube number", half an odd cube (73 = 343) rounded up to the next integer.[2]
See also
[edit]References
[edit]![](http://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png)
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- ^ Sloane, N. J. A. (ed.). "Sequence A050787". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Sloane, N. J. A. (ed.). "Sequence A050492 (Thickened cube numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.