Number Tools
Mathematical and numerical processing utilities.
Min-Max Scaling Calculator
Scale a list of numbers to fit within a target min-max range (e.g. 0 t...
Kaprekar Number Checker
Verify whether a given number is a Kaprekar number, showing the split ...
Digit Sum Calculator
Sum all the individual digits of an integer repeatedly (digital root) ...
Normalize Number to 0-1 Range
Scale any number into the 0.0 to 1.0 range relative to a known minimum...
Significant Figures Calculator
Round a number to a specified number of significant figures and displa...
Number Reversal Tool
Reverse the digits of any integer and return the result as a valid num...
Geometric Sequence Generator
Produces a geometric sequence given a first term, common ratio, and nu...
Modular Arithmetic Calculator
Performs arithmetic operations (addition, subtraction, multiplication,...
Map Number Between Ranges
Maps a value from one numerical range to an equivalent position in a d...
Integer Partition Generator
Lists all ways a positive integer can be expressed as a sum of positiv...
Pascal's Triangle Generator
Generates Pascal's Triangle up to a custom row count with formatted sp...
Fibonacci Sequence Generator
Generates Fibonacci sequence terms up to a custom term limit....
Collatz Sequence Generator
Generates the Collatz (3n+1) sequence starting from any positive integ...
Random Float Generator
Generates random floating-point numbers within a custom range [min, ma...
Random Number Generator
Generates random integers within a custom range [min, max]....
Arithmetic Sequence Generator
Generates an arithmetic progression sequence and calculates the terms ...
Auto-Incrementing Number List
Generates a customizable list of auto-incrementing numbers with prefix...
Prime Number List Generator
Finds and outputs all prime numbers in a selected numerical range with...
Number Format Localizer
Convert and format numeric values according to specific international ...
Next Prime Finder
Find the smallest prime number that is strictly greater than a given i...
LCM Calculator
Find the Least Common Multiple (LCM) of two or more positive integers....
List of Divisors Generator
Generate all positive divisors of an integer, compute their sum, and c...
BCD Encoder
Encode a decimal integer into Binary Coded Decimal (BCD) format....
Happy Number Checker
Determine whether a number is a happy number by repeatedly replacing i...
Perfect Number Checker
Determine whether a positive integer is a perfect number by summing pr...
Prime Number Checker
Determine whether a given integer is a prime number or composite....
Prime Factorization Calculator
Decompose any positive integer into its prime factors using trial divi...
Number Digit Counter
Count total digits, leading zeros, and decimal digits in any number....
Ordinal Number Formatter
Convert cardinal integers to English ordinal form (1st, 2nd, 3rd, 4th,...
Continued Fraction Converter
Convert a decimal or rational number into its continued fraction repre...
Number to IEEE 754 Formatter
Convert a decimal floating-point number to its IEEE 754 single precisi...
BCD Decoder
Convert a Binary Coded Decimal (BCD) string — where each group of four...
Clamp Number to Range
Constrain a numeric value to stay within a specified minimum and maxim...
Number Permutation Counter (nPr)
Compute the number of permutations P(n, r) — the number of ways to arr...
Factorial Calculator
Compute the factorial of any non-negative integer (n!). Handles large ...
Amicable Number Checker
Verify if two positive integers are amicable numbers — where the sum o...
Number Palindrome Checker
Check whether a given integer reads the same forward and backward (e.g...
Fibonacci Number Checker
Check whether a given integer is a Fibonacci number using the mathemat...
Armstrong Number Checker
Check if a number is an Armstrong (narcissistic) number — where the su...
Abundant Number Checker
Check if a number is abundant, deficient, perfect, semiperfect, or wei...
Number Combination Counter (nCr)
Calculate combinations C(n,r) and permutations P(n,r) with formula bre...
GCD / HCF Calculator
Compute GCD (HCF) and LCM of 2+ integers using the Euclidean algorithm...
Euler's Totient Calculator
Compute Euler's Totient Function φ(n) for any positive integer. Return...
Percentage to Fraction Converter
Convert a percentage value directly into a simplified fraction. For ex...
Percentage to Decimal Converter
Convert a percentage value to its decimal equivalent by dividing by 10...
Improper Fraction to Mixed Number
Convert an improper fraction (where numerator > denominator) into its ...
Mixed Number to Improper Fraction
Convert a mixed number (e.g., 3½) into its equivalent improper fractio...
Decimal to Fraction Converter
Convert decimal numbers — including repeating decimals — into their ex...
Fraction to Decimal Converter
Convert fractions expressed as numerator/denominator into their decima...
Convert Number Between Bases
Convert a number from any source base (2 through 36) to any target bas...
Roman Numerals to Number
Convert Roman numeral strings (I, V, X, L, C, D, M) back to their deci...
Number to Roman Numerals
Convert any integer from 1 to 3,999 into its Roman numeral representat...
Engineering Notation Converter
Transform numbers into engineering notation where the exponent is alwa...
Scientific Notation Converter
Convert numbers between standard decimal notation and scientific notat...
Number to Words Converter
Convert any integer or decimal number into its written English word fo...
Number Formatter
Add thousands separators, set decimal places, and choose locale-specif...