235 (number)
235 (two hundred [and] thirty-five) is the integer following 234 and preceding 236.
| ||||
|---|---|---|---|---|
| Cardinal | two hundred thirty-five | |||
| Ordinal | 235th (two hundred thirty-fifth) | |||
| Factorization | 5 × 47 | |||
| Greek numeral | ΣΛΕ´ | |||
| Roman numeral | CCXXXV | |||
| Binary | 111010112 | |||
| Ternary | 222013 | |||
| Senary | 10316 | |||
| Octal | 3538 | |||
| Duodecimal | 17712 | |||
| Hexadecimal | EB16 | |||
Additionally, 235 is:
- a semiprime.
- a heptagonal number.[1]
- a centered triangular number.[2]
- therefore a figurate number in two ways.
- palindromic in bases 4 (32234), 7 (4547), 8 (3538), 13 (15113), and 46 (5546).
- a Harshad number in bases 6, 47, 48, 95, 116, 189 and 231.
- a Smarandache–Wellin number
Also:
- There are 235 different trees with 11 unlabeled nodes.[3]
- If an equilateral triangle is subdivided into smaller equilateral triangles whose side length is 1/9 as small, the resulting "matchstick arrangement" will have exactly 235 different equilateral triangles of varying sizes in it.[4]
References
- Sloane, N. J. A. (ed.). "Sequence A000566 (Heptagonal numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- Sloane, N. J. A. (ed.). "Sequence A005448 (Centered triangular numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- Sloane, N. J. A. (ed.). "Sequence A000055 (Number of trees with n unlabeled nodes)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- Sloane, N. J. A. (ed.). "Sequence A002717". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.