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13123552 = 251331547
BaseRepresentation
bin110010000011…
…111111100000
3220200202010111
4302003333200
511324423202
61145141104
7216356041
oct62037740
926622114
1013123552
117453a12
12448a794
132946520
141a588c8
1512436d7
hexc83fe0

13123552 has 24 divisors (see below), whose sum is σ = 27825336. Its totient is φ = 6056832.

The previous prime is 13123531. The next prime is 13123577. The reversal of 13123552 is 25532131.

13123552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15358 + ... + 16189.

It is an arithmetic number, because the mean of its divisors is an integer number (1159389).

Almost surely, 213123552 is an apocalyptic number.

It is an amenable number.

13123552 is an abundant number, since it is smaller than the sum of its proper divisors (14701784).

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

13123552 is a wasteful number, since it uses less digits than its factorization.

13123552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31570 (or 31562 counting only the distinct ones).

The product of its digits is 900, while the sum is 22.

The square root of 13123552 is about 3622.6443380492. The cubic root of 13123552 is about 235.8760241306.

Adding to 13123552 its reverse (25532131), we get a palindrome (38655683).

The spelling of 13123552 in words is "thirteen million, one hundred twenty-three thousand, five hundred fifty-two".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 31547 63094 126188 252376 410111 504752 820222 1009504 1640444 3280888 6561776 13123552