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13145268 = 2231095439
BaseRepresentation
bin110010001001…
…010010110100
3220201211220210
4302021102310
511331122033
61145425420
7216506253
oct62112264
926654823
1013145268
117469264
12449b270
132953386
141a6279a
151249d63
hexc894b4

13145268 has 12 divisors (see below), whose sum is σ = 30672320. Its totient is φ = 4381752.

The previous prime is 13145263. The next prime is 13145269. The reversal of 13145268 is 86254131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13145263) 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, 547708 + ... + 547731.

Almost surely, 213145268 is an apocalyptic number.

It is an amenable number.

13145268 is an abundant number, since it is smaller than the sum of its proper divisors (17527052).

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

13145268 is a wasteful number, since it uses less digits than its factorization.

13145268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095446 (or 1095444 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 13145268 is about 3625.6403572335. The cubic root of 13145268 is about 236.0060565333.

Adding to 13145268 its reverse (86254131), we get a palindrome (99399399).

The spelling of 13145268 in words is "thirteen million, one hundred forty-five thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 1095439 2190878 3286317 4381756 6572634 13145268