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13090937 = 113115849
BaseRepresentation
bin110001111100…
…000001111001
3220122002101112
4301330001321
511322402222
61144330105
7216161666
oct61740171
926562345
1013090937
117431462
124473935
132934722
141a4aa6d
151238be2
hexc7c079

13090937 has 4 divisors (see below), whose sum is σ = 13206900. Its totient is φ = 12974976.

The previous prime is 13090927. The next prime is 13090939. The reversal of 13090937 is 73909031.

It is a happy number.

13090937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4541161 + 8549776 = 2131^2 + 2924^2 .

It is a cyclic number.

It is not a de Polignac number, because 13090937 - 26 = 13090873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13090939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57812 + ... + 58037.

It is an arithmetic number, because the mean of its divisors is an integer number (3301725).

Almost surely, 213090937 is an apocalyptic number.

It is an amenable number.

13090937 is a deficient number, since it is larger than the sum of its proper divisors (115963).

13090937 is a wasteful number, since it uses less digits than its factorization.

13090937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115962.

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 13090937 is about 3618.1399917637. The cubic root of 13090937 is about 235.6804602474.

Adding to 13090937 its reverse (73909031), we get a palindrome (86999968).

The spelling of 13090937 in words is "thirteen million, ninety thousand, nine hundred thirty-seven".

Divisors: 1 113 115849 13090937