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235 (number)
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| Cardinal | two hundred thirty-five | |||
| Ordinal | 235th (two hundred thirty-fifth) | |||
| Factorization | 5 × 47 | |||
| Greek numeral | ΣΛΕ´ | |||
| Roman numeral | CCXXXV, ccxxxv | |||
| Binary | 111010112 | |||
| Ternary | 222013 | |||
| Senary | 10316 | |||
| Octal | 3538 | |||
| Duodecimal | 17712 | |||
| Hexadecimal | EB16 | |||
235 (two hundred [and] thirty-five) is the integer following 234 and preceding 236.
In mathematics
[edit]235 is a heptagonal number,[1] a centered triangular number,[2] and a Smarandache–Wellin number.[3] It is a Harshad number in bases 6, 47, 48, 95, 116, 189 and 231. It is palindromic in bases 4 (32234), 7 (4547), 8 (3538), 13 (15113), and 46 (5546)
There are 235 different trees with 11 unlabeled nodes.[4]
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.[5]
In other fields
[edit]The Metonic cycle is 235 synodic months.
References
[edit]- ^ 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 A019518 (smarandache-wellin 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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