1800063

1800063 is a positive integer. In mathematics, its prime factorization is 3^4 × 71 × 313, where 71 and 313 are prime numbers. This decomposition implies that the number is divisible by 3, 9, 27, and 81, but not by 243. The digit sum of 1800063 is 1+8+0+0+0+6+3 = 18, which confirms divisibility by 9.

The integer has 20 positive divisors, arising from multiplying powers of 3 (0 to 4) by the factors 1 or 71 and 1 or 313. Examples of divisors include 1, 3, 9, 27, 81, 71, 313, 639, 939, 2,817, 5,751, 22,223, 66,669, 200,007, 600,021, and 1,800,063.

The sum of all positive divisors, denoted sigma(n), equals 2,735,568. Therefore the sum of proper divisors (sigma(n) minus n) is 935,505. Since this sum is less than 1,800,063, 1800063 is classified as a deficient number in number theory.

In decimal notation, 1800063 is written as 1,800,063. Beyond its basic arithmetic and factorization properties, there is no widely noted mathematical significance attached to this specific integer.