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13090804 = 2231193547
BaseRepresentation
bin110001111011…
…111111110100
3220122002012121
4301323333310
511322401204
61144325324
7216161416
oct61737764
926562177
1013090804
117431351
124473844
13293464c
141a4a9b6
151238b54
hexc7bff4

13090804 has 24 divisors (see below), whose sum is σ = 23813888. Its totient is φ = 6289920.

The previous prime is 13090793. The next prime is 13090873. The reversal of 13090804 is 40809031.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23659 + ... + 24205.

Almost surely, 213090804 is an apocalyptic number.

It is an amenable number.

13090804 is a deficient number, since it is larger than the sum of its proper divisors (10723084).

13090804 is a wasteful number, since it uses less digits than its factorization.

13090804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 13090804 is about 3618.1216121076. The cubic root of 13090804 is about 235.6796620971.

Adding to 13090804 its reverse (40809031), we get a palindrome (53899835).

The spelling of 13090804 in words is "thirteen million, ninety thousand, eight hundred four".

Divisors: 1 2 4 31 62 124 193 386 547 772 1094 2188 5983 11966 16957 23932 33914 67828 105571 211142 422284 3272701 6545402 13090804