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105232025 = 524209281
BaseRepresentation
bin1100100010110…
…11011010011001
321100000100012102
412101123122121
5203414411100
614235253145
72415312623
oct621333231
9240010172
10105232025
1154445418
122b2aa1b5
1318a56092
14dd93c13
159389cd5
hex645b699

105232025 has 6 divisors (see below), whose sum is σ = 130487742. Its totient is φ = 84185600.

The previous prime is 105232021. The next prime is 105232037. The reversal of 105232025 is 520232501.

It can be written as a sum of positive squares in 3 ways, for example, as 21381376 + 83850649 = 4624^2 + 9157^2 .

It is not a de Polignac number, because 105232025 - 22 = 105232021 is a prime.

It is a super-2 number, since 2×1052320252 = 22147558171201250, 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 = 105231988 and 105232006.

It is not an unprimeable number, because it can be changed into a prime (105232021) 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, 2104616 + ... + 2104665.

It is an arithmetic number, because the mean of its divisors is an integer number (21747957).

Almost surely, 2105232025 is an apocalyptic number.

It is an amenable number.

105232025 is a deficient number, since it is larger than the sum of its proper divisors (25255717).

105232025 is an equidigital number, since it uses as much as digits as its factorization.

105232025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4209291 (or 4209286 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 105232025 is about 10258.2661790382. The cubic root of 105232025 is about 472.1166417297.

Adding to 105232025 its reverse (520232501), we get a palindrome (625464526).

The spelling of 105232025 in words is "one hundred five million, two hundred thirty-two thousand, twenty-five".

Divisors: 1 5 25 4209281 21046405 105232025