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105204325 = 524208173
BaseRepresentation
bin1100100010101…
…00101001100101
321022221221012111
412101110221211
5203413014300
614234521021
72415136102
oct621245145
9238857174
10105204325
1154426626
122b296171
1318a465a5
14dd87aa9
1593819ba
hex6454a65

105204325 has 6 divisors (see below), whose sum is σ = 130453394. Its totient is φ = 84163440.

The previous prime is 105204301. The next prime is 105204329. The reversal of 105204325 is 523402501.

It can be written as a sum of positive squares in 3 ways, for example, as 8398404 + 96805921 = 2898^2 + 9839^2 .

It is a de Polignac number, because none of the positive numbers 2k-105204325 is a prime.

It is a super-2 number, since 2×1052043252 = 22135899997411250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105204296 and 105204305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105204329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2104062 + ... + 2104111.

Almost surely, 2105204325 is an apocalyptic number.

It is an amenable number.

105204325 is a deficient number, since it is larger than the sum of its proper divisors (25249069).

105204325 is an equidigital number, since it uses as much as digits as its factorization.

105204325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4208183 (or 4208178 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 105204325 is about 10256.9159594880. The cubic root of 105204325 is about 472.0752133445.

Adding to 105204325 its reverse (523402501), we get a palindrome (628606826).

The spelling of 105204325 in words is "one hundred five million, two hundred four thousand, three hundred twenty-five".

Divisors: 1 5 25 4208173 21040865 105204325