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13253525 = 521035147
BaseRepresentation
bin110010100011…
…101110010101
3220221100102022
4302203232111
511343103100
61152022525
7220440005
oct62435625
926840368
1013253525
11753262a
124531a45
13299072c
141a90005
15126be85
hexca3b95

13253525 has 12 divisors (see below), whose sum is σ = 16597152. Its totient is φ = 10497840.

The previous prime is 13253521. The next prime is 13253533. The reversal of 13253525 is 52535231.

It is not a de Polignac number, because 13253525 - 22 = 13253521 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13253494 and 13253503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13253521) 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 11 ways as a sum of consecutive naturals, for example, 2 + ... + 5148.

It is an arithmetic number, because the mean of its divisors is an integer number (1383096).

Almost surely, 213253525 is an apocalyptic number.

It is an amenable number.

13253525 is a deficient number, since it is larger than the sum of its proper divisors (3343627).

13253525 is a wasteful number, since it uses less digits than its factorization.

13253525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260 (or 5255 counting only the distinct ones).

The product of its digits is 4500, while the sum is 26.

The square root of 13253525 is about 3640.5391084289. The cubic root of 13253525 is about 236.6521569715.

Adding to 13253525 its reverse (52535231), we get a palindrome (65788756).

The spelling of 13253525 in words is "thirteen million, two hundred fifty-three thousand, five hundred twenty-five".

Divisors: 1 5 25 103 515 2575 5147 25735 128675 530141 2650705 13253525