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In music, a hundred twenty-eighth note (North American) or semihemidemisemiquaver[1][2] or quasihemidemisemiquaver[3] (British) is a note played for ⁄128 of the duration of a whole note. It lasts half as long as a sixty-fourth note. It has a total of five flags or beams. A single 128th note is always stemmed with flags, while two or more are ...
Note value. In music notation, a note value indicates the relative duration of a note, using the texture or shape of the notehead, the presence or absence of a stem, and the presence or absence of flags/ beams /hooks/tails. Unmodified note values are fractional powers of two, for example one, one-half, one fourth, etc.
The US fluid ounce is based on the US gallon, which in turn is based on the wine gallon of 231 cubic inches that was used in the United Kingdom prior to 1824. With the adoption of the international inch, the US fluid ounce became 1⁄128 gal × 231 in 3 /gal × (2.54 cm/in) 3 = 29.5735295625 mL exactly, or about 4% larger than the imperial unit.
128 is the seventh power of 2. It is the largest number which cannot be expressed as the sum of any number of distinct squares. [1][2] However, it is divisible by the total number of its divisors, making it a refactorable number. [3] The sum of Euler's totient function φ (x) over the first twenty integers is 128. [4]
1/2 + 1/4 + 1/8 + 1/16 + ⋯. First six summands drawn as portions of a square. The geometric series on the real line. In mathematics, the infinite series 1 2 + 1 4 + 1 8 + 1 16 + ··· is an elementary example of a geometric series that converges absolutely. The sum of the series is 1. In summation notation ...
The fourth Smarandache-Wellin prime is the 355-digit concatenation of the first 128 primes that end with 719. ... 8 p − 1 ≡ 1 (mod p 2): 3, 1093, 3511
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Power of two. A power of two is a number of the form 2n where n is an integer, that is, the result of exponentiation with number two as the base and integer n as the exponent. Powers of two with non-negative exponents are integers: 20 = 1, 21 = 2, and 2n is two multiplied by itself n times. [1][2] The first ten powers of 2 for non-negative ...