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  2. Triangular number - Wikipedia

    en.wikipedia.org/wiki/Triangular_number

    The converse of the statement above is, however, not always true. For example, the digital root of 12, which is not a triangular number, is 3 and divisible by three. If x is a triangular number, a is an odd square, and b = ⁠ a − 1 / 8 ⁠, then ax + b is also a triangular number.

  3. Square triangular number - Wikipedia

    en.wikipedia.org/wiki/Square_triangular_number

    Square triangular number 36 depicted as a triangular number and as a square number. ... as well as the sides of the square and triangle involved. We have [3]: (12) ...

  4. List of types of numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_types_of_numbers

    Natural numbers including 0 are also sometimes called whole numbers. [1] [2] ... Base 12, a numeral system ... including Triangular numbers, Square numbers, ...

  5. 12 (number) - Wikipedia

    en.wikipedia.org/wiki/12_(number)

    12 (twelve) is the natural number following 11 and preceding 13.. Twelve is the 3rd superior highly composite number, [1] the 3rd colossally abundant number, [2] the 5th highly composite number, and is divisible by the numbers from 1 to 4, and 6, a large number of divisors comparatively.

  6. Polygonal number - Wikipedia

    en.wikipedia.org/wiki/Polygonal_number

    The triangular number sequence is the representation of the numbers in the form of equilateral triangle arranged in a series or sequence. These numbers are in a sequence of 1, 3, 6, 10, 15, 21, 28, 36, 45, and so on.

  7. Eleuthere I. du Pont - Pay Pals - The Huffington Post

    data.huffingtonpost.com/paypals/eleuthere-i-du-pont

    From January 2008 to December 2012, if you bought shares in companies when Eleuthere I. du Pont joined the board, and sold them when he left, you would have a 1.9 percent return on your investment, compared to a -2.8 percent return from the S&P 500.

  8. Report: 9 Western Oregon players file $28M suit, claim coach ...

    www.aol.com/report-9-western-oregon-players...

    The season ended six games early following a dispute in practice on Feb. 12, 2024, when Peatross and a player were involved in an altercation. In a team meeting, when coaches asked players if they ...

  9. 1 + 2 + 3 + 4 + ⋯ - ⋯ - Wikipedia

    en.wikipedia.org/wiki/1_%2B_2_%2B_3_%2B_4_%2B_%E...

    The parabola is their smoothed asymptote; its y-intercept is −1/12. [1] ... The infinite sequence of triangular numbers diverges to +∞, so by definition, ...