Number encyclopedia.

What is MetaNumbers?

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MetaNumbers is a comprehensive number encyclopedia that provides information about positive integers up to 9223372036854775807. It offers various mathematical properties and classifications of numbers, including factorized form, divisors, arithmetic functions, and more.


  1. Prime Number Identification: Check if a number is prime or composite.
  2. Prime Factorization: Compute the prime factors of a given number.
  3. Divisors Calculation: Determine all positive divisors of a number.
  4. Arithmetic Functions: Calculate various arithmetic functions like omega, tau, sigma, and phi.
  5. Classification: Identify the classification of numbers such as perfect, deficient, semiprime, etc.
  6. Number Conversion: Convert numbers into different numeral systems like binary, octal, and hexadecimal.

Use Cases:

  • Mathematics Enthusiasts: Explore and study the properties and classifications of numbers.
  • Number Theorists: Conduct in-depth analysis and research on specific numbers.
  • Students and Educators: Access a reliable resource for mathematical information and examples.
  • Problem Solvers: Utilize the prime factorization and divisors calculation for problem-solving purposes.
  • Number Converters: Convert numbers into different numeral systems for various applications.
Published on Jan. 28, 2024