12090

12090 is a natural number that follows 12089 and precedes 12091. It is even and composite.

Its prime factorization is 2 × 3 × 5 × 13 × 31, making the number divisible by 2, 3, 5, 6, 10, 15, and 30. Because it is a product of five distinct primes, 12090 has 32 divisors in total. The sum of its digits is 12, so it is not a Harshad (Niven) number, since 12090 is not divisible by 12.

12090 is also a triangular number, specifically the 155th triangular number, since 155 × 156 / 2 = 12090. This means it equals the sum of the integers from 1 to 155.

In other bases, 12090 is represented as follows: binary 10111100111010, octal 27472, and hexadecimal 2F3A. These representations reflect its same value expressed in different numeral systems.

Overall, 12090 is notable for being a highly composite-feeling product of five distinct primes, its status as a triangular number, and its concise base representations.