20520

20520 is a natural number that lies between 20519 and 20521. It is even and composite.

Prime factorization and divisors: 20520 = 2^3 × 3^3 × 5 × 19. This yields 64 positive divisors. The number is divisible by 8, 9, 10, 18, 24, 27, 45, 60, and 120, among others. The digit sum is 9, so 20520 is a Harshad number in base 10.

Base representations: In hexadecimal, 20520 is 0x5028. In binary, it can be written as 0101 0000 0010 1000.

Mathematical notes: 20520 is not a prime, nor a perfect square or triangular number. It is divisible by 3 and 5, hence by 15, and its factorization allows divisibility by many common small integers (for example, it is divisible by 72 as well). The number of positive divisors is 64.

Applications or significance: There is no widely known mathematical constant or property uniquely associated with 20520 beyond its factorization and base-10 characteristics. It is often cited as an example of a composite number with a relatively large number of divisors and straightforward base representations.