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23252265 = 34557413
BaseRepresentation
bin101100010110…
…0110100101001
31121202100010000
41120230310221
521423033030
62150213213
7401432601
oct130546451
947670100
1023252265
1112141853
127954209
134a8184a
143133c01
152094860
hex162cd29

23252265 has 20 divisors (see below), whose sum is σ = 41682564. Its totient is φ = 12400992.

The previous prime is 23252261. The next prime is 23252269. The reversal of 23252265 is 56225232.

It is an interprime number because it is at equal distance from previous prime (23252261) and next prime (23252269).

It can be written as a sum of positive squares in 2 ways, for example, as 4822416 + 18429849 = 2196^2 + 4293^2 .

It is not a de Polignac number, because 23252265 - 22 = 23252261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23252261) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28302 + ... + 29111.

Almost surely, 223252265 is an apocalyptic number.

It is an amenable number.

23252265 is a deficient number, since it is larger than the sum of its proper divisors (18430299).

23252265 is an equidigital number, since it uses as much as digits as its factorization.

23252265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57430 (or 57421 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 23252265 is about 4822.0602443354. The cubic root of 23252265 is about 285.4226416305.

Adding to 23252265 its reverse (56225232), we get a palindrome (79477497).

The spelling of 23252265 in words is "twenty-three million, two hundred fifty-two thousand, two hundred sixty-five".

Divisors: 1 3 5 9 15 27 45 81 135 405 57413 172239 287065 516717 861195 1550151 2583585 4650453 7750755 23252265