187 (number)

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← 186 187 188 →
Cardinal one hundred eighty-seven
Ordinal 187th
(one hundred eighty-seventh)
Factorization 11 × 17
Greek numeral ΡΠΖ´
Roman numeral CLXXXVII
Binary 101110112
Ternary 202213
Senary 5116
Octal 2738
Duodecimal 13712
Hexadecimal BB16

187 (one hundred [and] eighty-seven) is the natural number following 186 and preceding 188.

Contents

In mathematics

There are 187 ways of forming a sum of positive integers that adds to 11, counting two sums as equivalent when they are cyclic permutations of each other. [1] There are also 187 unordered triples of 5-bit binary numbers whose bitwise exclusive or is zero. [2]

Per Miller's rules, the triakis tetrahedron produces 187 distinct stellations. [3] It is the smallest Catalan solid, dual to the truncated tetrahedron, which only has 9 distinct stellations.

In other fields

There are 187 chapters in the Hebrew Torah. [4]

See also

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References

  1. ↑ Sloane, N. J. A. (ed.). "SequenceA008965(Number of necklaces of sets of beads containing a total of n beads)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
  2. ↑ Sloane, N. J. A. (ed.). "SequenceA007581". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
  3. ↑ Webb, Robert. "Enumeration of Stellations". www.software3d.com. Archived from the original on 2022-11-26. Retrieved 2022-11-25.
  4. ↑ Marcus, David (2003). "Alternate Chapter Divisions in the Pentateuch in the Light of the Masoretic Sections". Hebrew Studies. Project Muse. 44 (1): 119–128. doi:10.1353/hbr.2003.0035. S2CID   170289096.
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