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23085697 = 59391283
BaseRepresentation
bin101100000010…
…0001010000001
31121102212121211
41120010022001
521402220242
62142450121
7400140145
oct130041201
947385554
1023085697
1112038698
127893941
134a23a9b
1430cd225
152060317
hex1604281

23085697 has 4 divisors (see below), whose sum is σ = 23477040. Its totient is φ = 22694356.

The previous prime is 23085683. The next prime is 23085707. The reversal of 23085697 is 79658032.

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 23085697 - 215 = 23052929 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23085637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195583 + ... + 195700.

It is an arithmetic number, because the mean of its divisors is an integer number (5869260).

Almost surely, 223085697 is an apocalyptic number.

It is an amenable number.

23085697 is a deficient number, since it is larger than the sum of its proper divisors (391343).

23085697 is an equidigital number, since it uses as much as digits as its factorization.

23085697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391342.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 23085697 is about 4804.7577462345. The cubic root of 23085697 is about 284.7394643739.

The spelling of 23085697 in words is "twenty-three million, eighty-five thousand, six hundred ninety-seven".

Divisors: 1 59 391283 23085697