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  2. rpoN - Wikipedia

    en.wikipedia.org/wiki/RpoN

    Sigma-54 factor, Activator interacting domain; Identifiers; ... σ54 promoter elements consist of conserved nucleotides located at −12 and −24 with respect to the ...

  3. 54 (number) - Wikipedia

    en.wikipedia.org/wiki/54_(number)

    54 as the sum of three positive squares. 54 is an abundant number [1] because the sum of its proper divisors , [2] which excludes 54 as a divisor, is greater than itself. Like all multiples of 6, [3] 54 is equal to some of its proper divisors summed together, [a] so it is also a semiperfect number. [4]

  4. Duodecimal - Wikipedia

    en.wikipedia.org/wiki/Duodecimal

    The duodecimal system, also known as base twelve or dozenal, is a positional numeral system using twelve as its base.In duodecimal, the number twelve is denoted "10", meaning 1 twelve and 0 units; in the decimal system, this number is instead written as "12" meaning 1 ten and 2 units, and the string "10" means ten.

  5. Composite number - Wikipedia

    en.wikipedia.org/wiki/Composite_number

    If none of its prime factors are repeated, it is called squarefree. (All prime numbers and 1 are squarefree.) For example, 72 = 2 3 × 3 2, all the prime factors are repeated, so 72 is a powerful number. 42 = 2 × 3 × 7, none of the prime factors are repeated, so 42 is squarefree. Euler diagram of numbers under 100:

  6. Abundant number - Wikipedia

    en.wikipedia.org/wiki/Abundant_number

    The sequence (a k) of least numbers n such that σ(n) > kn, in which a 2 = 12 corresponds to the first abundant number, grows very quickly (sequence A134716 in the OEIS). The smallest odd integer with abundancy index exceeding 3 is 1018976683725 = 3 3 × 5 2 × 7 2 × 11 × 13 × 17 × 19 × 23 × 29.

  7. Greatest common divisor - Wikipedia

    en.wikipedia.org/wiki/Greatest_common_divisor

    Therefore, 12 is the greatest common divisor of 24 and 60. A 24-by-60 rectangular area can thus be divided into a grid of 12-by-12 squares, with two squares along one edge (24/12 = 2) and five squares along the other (60/12 = 5).

  8. Judith M. Runstad - Pay Pals - The Huffington Post

    data.huffingtonpost.com/paypals/judith-m-runstad

    From January 2008 to December 2012, if you bought shares in companies when Judith M. Runstad joined the board, and sold them when she left, you would have a 12.1 percent return on your investment, compared to a -2.8 percent return from the S&P 500.

  9. Highly composite number - Wikipedia

    en.wikipedia.org/wiki/Highly_composite_number

    12 × 840: 14 × 720: 15 ... th successive prime number, and all omitted terms (a 22 to a 228) are factors with exponent equal to one (i.e. the number is ...