20050312 has 16 divisors (see below), whose sum is σ = 38511900. Its totient is φ = 9780480.

The previous prime is 20050307. The next prime is 20050321. The reversal of 20050312 is 21305002.

It can be written as a sum of positive squares in 2 ways, for example, as 14546596 + 5503716 = 3814^2 + 2346^2 .

It is a super-2 number, since 2×20050312² = 804030022594688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20050292 and 20050301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30237 + ... + 30892.

Almost surely, 2^20050312 is an apocalyptic number.

It is an amenable number.

20050312 is a deficient number, since it is larger than the sum of its proper divisors (18461588).

20050312 is a wasteful number, since it uses less digits than its factorization.

20050312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61176 (or 61172 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 20050312 is about 4477.7574744508. The cubic root of 20050312 is about 271.6691840299.

Adding to 20050312 its reverse (21305002), we get a palindrome (41355314).

The spelling of 20050312 in words is "twenty million, fifty thousand, three hundred twelve".