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148 (one hundred
ndforty-eight) is the
natural number
In mathematics, the natural numbers are the numbers 0, 1, 2, 3, and so on, possibly excluding 0. Some start counting with 0, defining the natural numbers as the non-negative integers , while others start with 1, defining them as the positive in ...
following
147 and before
149.
In mathematics
148 is the second number to be both a
heptagonal number and a
centered heptagonal number (the first is 1). It is the twelfth member of the
Mian–Chowla sequence, the lexicographically smallest sequence of distinct positive integers with distinct pairwise sums.
There are 148
perfect graph
In graph theory, a perfect graph is a Graph (discrete mathematics), graph in which the Graph coloring, chromatic number equals the size of the maximum clique, both in the graph itself and in every induced subgraph. In all graphs, the chromatic nu ...
s with six
vertices, and 148 ways of partitioning four people into subsets, ordering the subsets, and selecting a leader for each subset.
In other fields
Dunbar's number
Dunbar's number is a suggested cognitive limit to the number of people with whom one can maintain stable social relationships—relationships in which an individual knows who each person is and how each person relates to every other person. This ...
is a theoretical cognitive limit to the number of people with whom one can maintain stable
interpersonal relationship
In social psychology, an interpersonal relation (or interpersonal relationship) describes a social association, connection, or affiliation between two or more people. It overlaps significantly with the concept of social relations, which a ...
s. Dunbar predicted a "mean group size" of 148,
but this is commonly rounded to 150.
References
Integers
{{Num-stub