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13005268 = 223251317
BaseRepresentation
bin110001100111…
…000111010100
3220110201212121
4301213013110
511312132033
61142425324
7215354143
oct61470724
926421777
1013005268
117383061
124432244
132904733
141a2775a
15121d62d
hexc671d4

13005268 has 6 divisors (see below), whose sum is σ = 22759226. Its totient is φ = 6502632.

The previous prime is 13005263. The next prime is 13005269. The reversal of 13005268 is 86250031.

It is a happy number.

13005268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9721924 + 3283344 = 3118^2 + 1812^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13005263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1625655 + ... + 1625662.

Almost surely, 213005268 is an apocalyptic number.

It is an amenable number.

13005268 is a deficient number, since it is larger than the sum of its proper divisors (9753958).

13005268 is a wasteful number, since it uses less digits than its factorization.

13005268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251321 (or 3251319 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 13005268 is about 3606.2817416281. The cubic root of 13005268 is about 235.1652255883.

Adding to 13005268 its reverse (86250031), we get a palindrome (99255299).

The spelling of 13005268 in words is "thirteen million, five thousand, two hundred sixty-eight".

Divisors: 1 2 4 3251317 6502634 13005268