13000000208 has 20 divisors (see below), whose sum is σ = 27125000868. Its totient is φ = 6000000000.

The previous prime is 13000000163. The next prime is 13000000217. The reversal of 13000000208 is 80200000031.

It can be written as a sum of positive squares in 2 ways, for example, as 1212989584 + 11787010624 = 34828^2 + 108568^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13000000192 and 13000000201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31249793 + ... + 31250208.

Almost surely, 2^13000000208 is an apocalyptic number.

It is an amenable number.

13000000208 is an abundant number, since it is smaller than the sum of its proper divisors (14125000660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13000000208 is a wasteful number, since it uses less digits than its factorization.

13000000208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62500022 (or 62500016 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 13000000208 its reverse (80200000031), we get a palindrome (93200000239).

It can be divided in two parts, 13000000 and 208, that multiplied together give a square (2704000000 = 52000²).

The spelling of 13000000208 in words is "thirteen billion, two hundred eight", and thus it is an aban number.