178 (number)

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Cardinal one hundred seventy-eight
Ordinal 178th
(one hundred seventy-eighth)
Factorization 2 × 89
Divisors 1, 2, 89, 178
Greek numeral ΡΟΗ´
Roman numeral CLXXVIII
Binary 101100102
Ternary 201213
Octal 2628
Duodecimal 12A12
Hexadecimal B216

178 (one hundred [and] seventy-eight) is the natural number following 177 and preceding 179.

Contents

In mathematics

There are 178 biconnected graphs with six vertices, among which one is designated as the root and the rest are unlabeled. [1] There are also 178 median graphs on nine vertices. [2]

178 is one of the indexes of the smallest triple of dodecahedral numbers where one is the sum of the other two: the sum of the 46th and the 178th dodecahedral numbers is the 179th. [3]

See also

Related Research Articles

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700 is the natural number following 699 and preceding 701.

800 is the natural number following 799 and preceding 801.

142 is the natural number following 141 and preceding 143.

229 is the natural number following 228 and preceding 230.

185 is the natural number following 184 and preceding 186.

1,000,000,000 Natural number

1,000,000,000 is the natural number following 999,999,999 and preceding 1,000,000,001. With a number, "billion" can be abbreviated as b, bil or bn.

100,000,000 is the natural number following 99,999,999 and preceding 100,000,001.

233 is the natural number following 232 and preceding 234.

257 is the natural number following 256 and preceding 258.

177 is the natural number following 176 and preceding 178.

184 is the natural number following 183 and preceding 185.

202 is the natural number following 201 and preceding 203.

205 is the natural number following 204 and preceding 206.

209 is the natural number following 208 and preceding 210.

236 is the natural number following 235 and preceding 237. 236 is a happy number.

238 is the natural number following 237 and preceding 239.

743 is the natural number following 742 and preceding 744. It is a prime number.

888 is the natural number following 887 and preceding 889.

References

  1. ↑ Sloane, N. J. A. (ed.). "SequenceA004115(Number of unlabeled rooted nonseparable graphs with n nodes)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
  2. ↑ Sloane, N. J. A. (ed.). "SequenceA292623(Number of median graphs on n nodes)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
  3. ↑ Sloane, N. J. A. (ed.). "SequenceA053018". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
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