828

828 = 2 x 2 x 3 x 3 x 23.

There are 828 primes between 180,000 and 190,000 (A038824).

There are 828 ways to write 42 as the sum of nine nonnegative cubes (A173682).

828 is the sum of nine positive fifth powers (A003354): 828 = 3⁵ + 3⁵ + 3⁵ + 2⁵ + 2⁵ + 2⁵ + 1⁵ + 1⁵ + 1⁵.

828 is a number with 18 divisors (A030636).

The sum of the base 3 digits of 828 (1010200) equals the sum of the base 9 digits of 828 (1120) (A037314).

Source: On-Line Encyclopedia of Integer Sequence