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Contents

(Top) 1 In mathematics 2 In science 3 See also 4 References

235 (number): Difference between revisions

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Revision as of 15:16, 15 November 2020

235

← 230 231 232 233 234 235 236 237 238 239 →

List of numbers

← 0 100 200 300 400 500 600 700 800 900 →

two hundred thirty-five

235th
(two hundred thirty-fifth)

5 × 47

ΣΛΕ´

CCXXXV

11101011₂

22201₃

1031₆

353₈

177₁₂

EB₁₆

235 (two hundred [and] thirty-five) is the integer following 234 and preceding 236.

In mathematics

235 is:

asemiprime.
aheptagonal number.^[1]
acentered triangular number.^[2]
therefore a figurate number in two ways.
palindromic in bases 4 (3223₄), 7 (454₇), 8 (353₈), 13 (151₁₃), 46 (55₄₆) and 234 (11₂₃₄)
aHarshad number in bases 6, 47, 48, 95, 116, 189 and 231.
aSmarandache–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]

In science

U-235 is the fissile isotopeofuranium used in the first atomic bombs.

See also

List of highways numbered 235
235 film, 35 mm film in daylight-loading spools
Superscope 235, a motion picture film format
2.35 to 1 widescreen aspect ratio in anamorphic format

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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This article about a number is a stub. You can help Wikipedia by expanding it.

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