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13123208 = 237234343
BaseRepresentation
bin110010000011…
…111010001000
3220200201122202
4302003322020
511324420313
61145135332
7216355040
oct62037210
926621582
1013123208
11745372a
12448a548
132946317
141a58720
151243558
hexc83e88

13123208 has 16 divisors (see below), whose sum is σ = 28121280. Its totient is φ = 5624208.

The previous prime is 13123207. The next prime is 13123211. The reversal of 13123208 is 80232131.

It is a super-2 number, since 2×131232082 = 344437176422528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13123208.

It is not an unprimeable number, because it can be changed into a prime (13123207) 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, 117116 + ... + 117227.

It is an arithmetic number, because the mean of its divisors is an integer number (1757580).

Almost surely, 213123208 is an apocalyptic number.

It is an amenable number.

13123208 is an abundant number, since it is smaller than the sum of its proper divisors (14998072).

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

13123208 is a wasteful number, since it uses less digits than its factorization.

13123208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234356 (or 234352 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 13123208 is about 3622.5968586085. The cubic root of 13123208 is about 235.8739631525.

Adding to 13123208 its reverse (80232131), we get a palindrome (93355339).

It can be divided in two parts, 13123 and 208, that added together give a palindrome (13331).

The spelling of 13123208 in words is "thirteen million, one hundred twenty-three thousand, two hundred eight".

Divisors: 1 2 4 7 8 14 28 56 234343 468686 937372 1640401 1874744 3280802 6561604 13123208