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190 (number)
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190 1, 2, 5, 10, 19, 38, 95, 190
190 (one hundred [and] ninety) is the natural number following 189 and preceding 191.
In mathematics
190 is a triangular number, a hexagonal number, and a centered nonagonal number, the fourth figurate number (after 1, 28, and 91) with that combination of properties.A272399 The intersection of hexagonal numbers (A000384) and centered 9-gonal numbers (A060544) cs2 It is also a truncated square pyramid number.A050409 Truncated square pyramid numbers: a(n) Sum_{k n..2*n} k^2 cs2
See also
190 (disambiguation)
References
1
Category:Integers