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  2. 65 (number) - Wikipedia

    en.wikipedia.org/wiki/65_(number)

    65 is the length of the hypotenuse of 4 different Pythagorean triangles, the lowest number to have more than 2: 65 2 = 16 2 + 63 2 = 33 2 + 56 2 = 39 2 + 52 2 = 25 2 + 60 2. [10] The first two are "primitive", and 65 is the lowest number to be the largest side of more than one such triple. [11] 65 is the number of compositions of 11 into ...

  3. List of numeral systems - Wikipedia

    en.wikipedia.org/wiki/List_of_numeral_systems

    A form of unary notation called Church encoding is used to represent numbers within lambda calculus. Some email spam filters tag messages with a number of asterisks in an e-mail header such as X-Spam-Bar or X-SPAM-LEVEL. The larger the number, the more likely the email is considered spam. 10: Bijective base-10: To avoid zero: 26: Bijective base-26

  4. Terbium - Wikipedia

    en.wikipedia.org/wiki/Terbium

    Terbium is a chemical element; it has the symbol Tb and atomic number 65. It is a silvery-white, rare earth metal that is malleable and ductile. The ninth member of the lanthanide series, terbium is a fairly electropositive metal that reacts with water, evolving hydrogen gas.

  5. 65,535 - Wikipedia

    en.wikipedia.org/wiki/65,535

    65535 is the fifteenth 626-gonal number, the fifth 6555-gonal number, and the third 21846-gonal number. 65535 is the product of the first four Fermat primes: 65535 = (2 + 1)(4 + 1)(16 + 1)(256 + 1). Because of this property, it is possible to construct with compass and straightedge a regular polygon with 65535 sides (see, constructible polygon).

  6. Sexagesimal - Wikipedia

    en.wikipedia.org/wiki/Sexagesimal

    Sexagesimal, also known as base 60, [1] is a numeral system with sixty as its base.It originated with the ancient Sumerians in the 3rd millennium BC, was passed down to the ancient Babylonians, and is still used—in a modified form—for measuring time, angles, and geographic coordinates.

  7. What Is the Average Social Security Benefit at 65? - AOL

    www.aol.com/finance/average-social-security...

    The difference is due to a number of factors — including the fact that recipients younger than 65 typically get lower payments. Average benefits for 65-year-olds have been on the rise for a ...

  8. Retirement Planning: How Much the Average 65-Year-Old Retiree ...

    www.aol.com/finance/retirement-planning-much...

    The BLS report found that, on average, people 65 and older spend $18,872 annually for housing. This represents 36.2% of your annual expenses.

  9. Hexadecimal - Wikipedia

    en.wikipedia.org/wiki/Hexadecimal

    Hexadecimal (also known as base-16 or simply hex) is a positional numeral system that represents numbers using a radix (base) of sixteen. Unlike the decimal system representing numbers using ten symbols, hexadecimal uses sixteen distinct symbols, most often the symbols "0"–"9" to represent values 0 to 9 and "A"–"F" to represent values from ten to fifteen.