235 (number)

← 234 235 236 →
← 230 231 232 233 234 235 236 237 238 239 → List of numbers Integers ← 0 100 200 300 400 500 600 700 800 900 →
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.

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]
• The Metonic cycle is 235 synodic months.

References

1. Sloane, N. J. A. (ed.). "SequenceA000566(Heptagonal numbers)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
2. Sloane, N. J. A. (ed.). "SequenceA005448(Centered triangular numbers)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
3. Sloane, N. J. A. (ed.). "SequenceA000055(Number of trees with n unlabeled nodes)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
4. Sloane, N. J. A. (ed.). "SequenceA002717". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.