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13115252 = 2225113063
BaseRepresentation
bin110010000001…
…111101110100
3220200022202002
4302001331310
511324142002
61145034432
7216322613
oct62017564
926608662
1013115252
117448757
124485a18
132942807
141a5587a
151241002
hexc81f74

13115252 has 12 divisors (see below), whose sum is σ = 23044896. Its totient is φ = 6531000.

The previous prime is 13115251. The next prime is 13115257. The reversal of 13115252 is 25251131.

It is a happy number.

13115252 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 not an unprimeable number, because it can be changed into a prime (13115251) 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, 5528 + ... + 7535.

It is an arithmetic number, because the mean of its divisors is an integer number (1920408).

Almost surely, 213115252 is an apocalyptic number.

It is an amenable number.

13115252 is a deficient number, since it is larger than the sum of its proper divisors (9929644).

13115252 is a wasteful number, since it uses less digits than its factorization.

13115252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13318 (or 13316 counting only the distinct ones).

The product of its digits is 300, while the sum is 20.

The square root of 13115252 is about 3621.4985848403. The cubic root of 13115252 is about 235.8262869894.

Adding to 13115252 its reverse (25251131), we get a palindrome (38366383).

The spelling of 13115252 in words is "thirteen million, one hundred fifteen thousand, two hundred fifty-two".

Divisors: 1 2 4 251 502 1004 13063 26126 52252 3278813 6557626 13115252