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13004260 = 225650213
BaseRepresentation
bin110001100110…
…110111100100
3220110200111021
4301212313210
511312114020
61142420524
7215351203
oct61466744
926420437
1013004260
117382325
124431744
132904139
141a2723a
15121d1aa
hexc66de4

13004260 has 12 divisors (see below), whose sum is σ = 27308988. Its totient is φ = 5201696.

The previous prime is 13004207. The next prime is 13004261. The reversal of 13004260 is 6240031.

It can be written as a sum of positive squares in 2 ways, for example, as 4571044 + 8433216 = 2138^2 + 2904^2 .

It is a super-2 number, since 2×130042602 = 338221556295200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13004261) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 325087 + ... + 325126.

It is an arithmetic number, because the mean of its divisors is an integer number (2275749).

Almost surely, 213004260 is an apocalyptic number.

13004260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13004260 is an abundant number, since it is smaller than the sum of its proper divisors (14304728).

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

13004260 is a wasteful number, since it uses less digits than its factorization.

13004260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650222 (or 650220 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13004260 is about 3606.1419827844. The cubic root of 13004260 is about 235.1591497768.

Adding to 13004260 its reverse (6240031), we get a palindrome (19244291).

The spelling of 13004260 in words is "thirteen million, four thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 650213 1300426 2600852 3251065 6502130 13004260