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3205525 = 52128221
BaseRepresentation
bin1100001110100110010101
320000212011011
430032212111
51310034100
6152412221
736150361
oct14164625
96025134
103205525
11189a3a4
1210a7071
1388307b
145d62a1
15434bba
hex30e995

3205525 has 6 divisors (see below), whose sum is σ = 3974882. Its totient is φ = 2564400.

The previous prime is 3205523. The next prime is 3205589. The reversal of 3205525 is 5255023.

3205525 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 3 ways, for example, as 188356 + 3017169 = 434^2 + 1737^2 .

It is not a de Polignac number, because 3205525 - 21 = 3205523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3205496 and 3205505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3205523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64086 + ... + 64135.

Almost surely, 23205525 is an apocalyptic number.

It is an amenable number.

3205525 is a deficient number, since it is larger than the sum of its proper divisors (769357).

3205525 is a wasteful number, since it uses less digits than its factorization.

3205525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128231 (or 128226 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 3205525 is about 1790.3980004457. The cubic root of 3205525 is about 147.4460206579.

The spelling of 3205525 in words is "three million, two hundred five thousand, five hundred twenty-five".

Divisors: 1 5 25 128221 641105 3205525