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23252389 = 25192639
BaseRepresentation
bin101100010110…
…0110110100101
31121202100021121
41120230312211
521423034024
62150213541
7401433136
oct130546645
947670247
1023252389
1112141956
1279542b1
134a81914
143133c8d
1520948e4
hex162cda5

23252389 has 4 divisors (see below), whose sum is σ = 23345280. Its totient is φ = 23159500.

The previous prime is 23252381. The next prime is 23252393. The reversal of 23252389 is 98325232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23252389 - 23 = 23252381 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23252381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46069 + ... + 46570.

It is an arithmetic number, because the mean of its divisors is an integer number (5836320).

Almost surely, 223252389 is an apocalyptic number.

It is an amenable number.

23252389 is a deficient number, since it is larger than the sum of its proper divisors (92891).

23252389 is an equidigital number, since it uses as much as digits as its factorization.

23252389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92890.

The product of its digits is 25920, while the sum is 34.

The square root of 23252389 is about 4822.0731018930. The cubic root of 23252389 is about 285.4231489982.

The spelling of 23252389 in words is "twenty-three million, two hundred fifty-two thousand, three hundred eighty-nine".

Divisors: 1 251 92639 23252389