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190 (number)

← 189 190 191 →
Cardinalone hundred ninety
Ordinal190th
(one hundred ninetieth)
Factorization2 × 5 × 19
Greek numeralΡϞ´
Roman numeralCXC
Binary101111102
Ternary210013
Senary5146
Octal2768
Duodecimal13A12
HexadecimalBE16

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.[1] It is also a truncated square pyramid number.[2]

In other fields

See also

Wikimedia Commons has media related to 190 (number).

References

  1. ^ Sloane, N. J. A. (ed.), "Sequence A272399 (The intersection of hexagonal numbers (A000384) and centered 9-gonal numbers (A060544))", The On-Line Encyclopedia of Integer Sequences, OEIS Foundation
  2. ^ Sloane, N. J. A. (ed.), "Sequence A050409 (Truncated square pyramid numbers: a(n) = Sum_{k = n..2*n} k^2)", The On-Line Encyclopedia of Integer Sequences, OEIS Foundation
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