/**
 * Converts a number to Roman numerals
 */
export declare const toRoman: (num: number) => string;
/**
 * Converts Roman numerals to a number
 */
export declare const fromRoman: (roman: string) => number;
/**
 * Converts a number to words (English)
 */
export declare const toWords: (num: number) => string;
/**
 * Converts a number to Indonesian words
 */
export declare const toIndonesianWords: (num: number) => string;
/**
 * Converts a number to binary string
 */
export declare const toBinary: (num: number) => string;
/**
 * Converts a number to hexadecimal string
 */
export declare const toHex: (num: number) => string;
/**
 * Converts a number to octal string
 */
export declare const toOctal: (num: number) => string;
/**
 * Converts a binary string to number
 */
export declare const fromBinary: (binary: string) => number;
/**
 * Converts a hexadecimal string to number
 */
export declare const fromHex: (hex: string) => number;
/**
 * Converts an octal string to number
 */
export declare const fromOctal: (octal: string) => number;
/**
 * Checks if a number is a perfect square
 */
export declare const isPerfectSquare: (num: number) => boolean;
/**
 * Checks if a number is a perfect cube
 */
export declare const isPerfectCube: (num: number) => boolean;
/**
 * Checks if a number is a power of 2
 */
export declare const isPowerOf2: (num: number) => boolean;
/**
 * Checks if a number is a power of 10
 */
export declare const isPowerOf10: (num: number) => boolean;
/**
 * Gets the factorial of a number
 */
export declare const factorial: (num: number) => number;
/**
 * Gets the greatest common divisor of two numbers
 */
export declare const gcd: (a: number, b: number) => number;
/**
 * Gets the least common multiple of two numbers
 */
export declare const lcm: (a: number, b: number) => number;
/**
 * Gets the Fibonacci number at a given index
 */
export declare const fibonacci: (n: number) => number;
/**
 * Gets the nth prime number
 */
export declare const nthPrime: (n: number) => number;
/**
 * Gets the sum of digits of a number
 */
export declare const sumOfDigits: (num: number) => number;
/**
 * Gets the product of digits of a number
 */
export declare const productOfDigits: (num: number) => number;
/**
 * Reverses the digits of a number
 */
export declare const reverseDigits: (num: number) => number;
/**
 * Checks if a number is a palindrome
 */
export declare const isPalindrome: (num: number) => boolean;
/**
 * Gets the number of digits in a number
 */
export declare const digitCount: (num: number) => number;
/**
 * Gets the first digit of a number
 */
export declare const firstDigit: (num: number) => number;
/**
 * Gets the last digit of a number
 */
export declare const lastDigit: (num: number) => number;