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13006434 = 237309677
BaseRepresentation
bin110001100111…
…011001100010
3220110210110210
4301213121202
511312201214
61142434550
7215360430
oct61473142
926423423
1013006434
117383a21
124432a56
13290511c
141a27d50
15121db59
hexc67662

13006434 has 16 divisors (see below), whose sum is σ = 29729088. Its totient is φ = 3716112.

The previous prime is 13006423. The next prime is 13006447. The reversal of 13006434 is 43460031.

13006434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 13006434.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154797 + ... + 154880.

It is an arithmetic number, because the mean of its divisors is an integer number (1858068).

Almost surely, 213006434 is an apocalyptic number.

13006434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13006434 is an abundant number, since it is smaller than the sum of its proper divisors (16722654).

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

13006434 is a wasteful number, since it uses less digits than its factorization.

13006434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309689.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 13006434 is about 3606.4434003600. The cubic root of 13006434 is about 235.1722533676.

Adding to 13006434 its reverse (43460031), we get a palindrome (56466465).

The spelling of 13006434 in words is "thirteen million, six thousand, four hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 42 309677 619354 929031 1858062 2167739 4335478 6503217 13006434