| Revision as of 12:29, 16 September 2022 editDhrm77 (talk | contribs)Extended confirmed users, Pending changes reviewers4,640 edits Undid revision 1110509294 by 2800:E2:407F:FC24:3D9F:C07F:3B1A:E8F2 (talk) removal of content without proper justification.Tags: Undo Reverted← Previous edit | Revision as of 13:35, 16 September 2022 edit undo181.71.66.100 (talk) →In mathematics: Alex Bellos suggested 247 to be the lowest candidate, not 224Tags: Manual revert Reverted Mobile edit Mobile web editNext edit → | ||
| Line 11: | Line 11: | ||
| 224 is the smallest ''k'' with λ(''k'') = 24, where λ(''k'') is the ].<ref>{{Cite OEIS|A141162|name=Smallest k such that lambda(k) = n}}</ref> | 224 is the smallest ''k'' with λ(''k'') = 24, where λ(''k'') is the ].<ref>{{Cite OEIS|A141162|name=Smallest k such that lambda(k) = n}}</ref> | ||
| The mathematician and philosopher ] suggested in 2014 that a candidate for the lowest ] would be 224 because it was, at the time, "the lowest number not to have its own page on ]".<ref>{{Cite book|last=Bellos|first=Alex|others=illus. The Surreal McCoy|date=June 2014|title=The Grapes of Math: How Life Reflects Numbers and Numbers Reflect Life|edition=1st Simon & Schuster hardcover|publisher=Simon & Schuster|publication-place=N.Y.|at=pp. 238 & 319 (quoting p. 319)|isbn=978-1-4516-4009-0}}</ref> | |||
| ==In other fields== | ==In other fields== | ||
Revision as of 13:35, 16 September 2022
224 (two hundred twenty-four) is the natural number following 223 and preceding 225.
In mathematics
Natural number
| ||||
|---|---|---|---|---|
| ← 220 221 222 223 224 225 226 227 228 229 → ← 0 100 200 300 400 500 600 700 800 900 → | ||||
| Cardinal | two hundred twenty-four | |||
| Ordinal | 224th (two hundred twenty-fourth) | |||
| Factorization | 2 × 7 | |||
| Prime | No | |||
| Greek numeral | ΣΚΔ´ | |||
| Roman numeral | CCXXIV, ccxxiv | |||
| Binary | 111000002 | |||
| Ternary | 220223 | |||
| Senary | 10126 | |||
| Octal | 3408 | |||
| Duodecimal | 16812 | |||
| Hexadecimal | E016 | |||
224 is a practical number, and a sum of two positive cubes 2 + 6.
224 is the smallest k with λ(k) = 24, where λ(k) is the Carmichael function.
In other fields
- The years 224 and 224 BC
- Area code 224
- .224 Weatherby Magnum, firearm cartridge
References
- Sloane, N. J. A. (ed.). "Sequence A005153 (Practical numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- Sloane, N. J. A. (ed.). "Sequence A003325 (Numbers that are the sum of 2 positive cubes)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- Sloane, N. J. A. (ed.). "Sequence A141162 (Smallest k such that lambda(k) = n)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
| Integers | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| −1 | |||||||||||||||||||||||
| |||||||||||||||||||||||
| |||||||||||||||||||||||
| |||||||||||||||||||||||
| |||||||||||||||||||||||
| |||||||||||||||||||||||
| |||||||||||||||||||||||
| |||||||||||||||||||||||
| |||||||||||||||||||||||
| |||||||||||||||||||||||
| |||||||||||||||||||||||
|
 | This article about a number is a stub. You can help Misplaced Pages by expanding it. |