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13006634 = 21032613
BaseRepresentation
bin110001100111…
…011100101010
3220110210202012
4301213130222
511312203014
61142435522
7215361134
oct61473452
926423665
1013006634
117384093
124432ba2
132905244
141a28054
15121dc3e
hexc6772a

13006634 has 12 divisors (see below), whose sum is σ = 19733346. Its totient is φ = 6429672.

The previous prime is 13006627. The next prime is 13006667. The reversal of 13006634 is 43660031.

It can be written as a sum of positive squares in only one way, i.e., 12996025 + 10609 = 3605^2 + 103^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20912 + ... + 21524.

Almost surely, 213006634 is an apocalyptic number.

13006634 is a deficient number, since it is larger than the sum of its proper divisors (6726712).

13006634 is an equidigital number, since it uses as much as digits as its factorization.

13006634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 13006634 is about 3606.4711284024. The cubic root of 13006634 is about 235.1734587764.

Adding to 13006634 its reverse (43660031), we get a palindrome (56666665).

It can be divided in two parts, 130066 and 34, that multiplied together give a palindrome (4422244).

The spelling of 13006634 in words is "thirteen million, six thousand, six hundred thirty-four".

Divisors: 1 2 103 206 613 1226 10609 21218 63139 126278 6503317 13006634