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23252117 = 72474533
BaseRepresentation
bin101100010110…
…0110010010101
31121202022220112
41120230302111
521423031432
62150212405
7401432300
oct130546225
947668815
1023252117
1112141729
127954105
134a81765
143133b37
1520947b2
hex162cc95

23252117 has 6 divisors (see below), whose sum is σ = 27048438. Its totient is φ = 19930344.

The previous prime is 23252111. The next prime is 23252153. The reversal of 23252117 is 71125232.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22791076 + 461041 = 4774^2 + 679^2 .

It is not a de Polignac number, because 23252117 - 24 = 23252101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23252092 and 23252101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23252111) 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, 237218 + ... + 237315.

It is an arithmetic number, because the mean of its divisors is an integer number (4508073).

Almost surely, 223252117 is an apocalyptic number.

It is an amenable number.

23252117 is a deficient number, since it is larger than the sum of its proper divisors (3796321).

23252117 is an equidigital number, since it uses as much as digits as its factorization.

23252117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474547 (or 474540 counting only the distinct ones).

The product of its digits is 840, while the sum is 23.

The square root of 23252117 is about 4822.0448981734. The cubic root of 23252117 is about 285.4220360603.

Adding to 23252117 its reverse (71125232), we get a palindrome (94377349).

The spelling of 23252117 in words is "twenty-three million, two hundred fifty-two thousand, one hundred seventeen".

Divisors: 1 7 49 474533 3321731 23252117