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  2. 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.

  3. List of mathematical constants - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_constants

    A mathematical constant is a key number whose value is fixed by an unambiguous definition, often referred to by a symbol (e.g., an alphabet letter), or by mathematicians' names to facilitate using it across multiple mathematical problems. [1]

  4. 52 (number) - Wikipedia

    en.wikipedia.org/wiki/52_(number)

    with an aliquot sum of 46; within an aliquot sequence of seven composite numbers { 52, 46, 26, 16, 15, 9, 4, 3, 1, 0 } to the prime in the 3-aliquot tree. This sequence does not extend above 52 because it is, an untouchable number, since it is never the sum of proper divisors of any number. It is the first untouchable number larger than 2 and 5 ...

  5. List of integer sequences - Wikipedia

    en.wikipedia.org/wiki/List_of_integer_sequences

    1, 2, 4, 6, 12, 24, 36, 48, 60, 120, ... A positive integer with more divisors than any smaller positive integer. A002182: Superior highly composite numbers: 2, 6, 12, 60, 120, 360, 2520, 5040, 55440, 720720, ... A positive integer n for which there is an e > 0 such that ⁠ d(n) / n e ⁠ ≥ ⁠ d(k) / k e ⁠ for all k > 1. A002201: Pronic ...

  6. List of mathematical series - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_series

    This list of mathematical series contains formulae for finite and infinite sums. It can be used in conjunction with other tools for evaluating sums. Here, is taken to have the value

  7. Falling and rising factorials - Wikipedia

    en.wikipedia.org/wiki/Falling_and_rising_factorials

    Additionally, we can expand generalized exponent laws and negative rising and falling powers through the following identities: [11] (p 52) ( x ) m + n = ( x ) m ( x − m ) n = ( x ) n ( x − n ) m x ( m + n ) = x ( m ) ( x + m ) ( n ) = x ( n ) ( x + n ) ( m ) x ( − n ) = Γ ( x − n ) Γ ( x ) = ( x − n − 1 ) !

  8. This Doctor Used His Math Skills to Lose 26 Pounds in 12 Weeks

    www.aol.com/lifestyle/doctor-used-math-skills...

    This Doctor Used His Math Skills to Lose 26 Pounds in 12 Weeks. As told to Jesse Hicks. April 4, 2023 at 1:58 PM ... In 12 weeks, I lost about 26 pounds and gained about 4.5 pounds of muscle.

  9. Mathematics - Wikipedia

    en.wikipedia.org/wiki/Mathematics

    This became the foundational crisis of mathematics. [52] It was eventually solved in mainstream mathematics by systematizing the axiomatic method inside a formalized set theory . Roughly speaking, each mathematical object is defined by the set of all similar objects and the properties that these objects must have. [ 12 ]