235 (number)
| ||||
|---|---|---|---|---|
| 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 | |||
235 is the integer after 234 and before 236.
In mathematics
235 is a figurate number in two ways: it is both a heptagonal number[1] and a centered triangular number,[2]
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]
See also
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.
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