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23289361 = 140916529
BaseRepresentation
bin101100011010…
…1111000010001
31121211012222221
41120311320101
521430224421
62151101041
7401646004
oct130657021
947735887
1023289361
1112167707
127971781
134a956b4
14314353b
1520a0841
hex1635e11

23289361 has 4 divisors (see below), whose sum is σ = 23307300. Its totient is φ = 23271424.

The previous prime is 23289347. The next prime is 23289367. The reversal of 23289361 is 16398232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9339136 + 13950225 = 3056^2 + 3735^2 .

It is a cyclic number.

It is not a de Polignac number, because 23289361 - 213 = 23281169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23289367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6856 + ... + 9673.

It is an arithmetic number, because the mean of its divisors is an integer number (5826825).

Almost surely, 223289361 is an apocalyptic number.

It is an amenable number.

23289361 is a deficient number, since it is larger than the sum of its proper divisors (17939).

23289361 is a wasteful number, since it uses less digits than its factorization.

23289361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17938.

The product of its digits is 15552, while the sum is 34.

The square root of 23289361 is about 4825.9052000635. The cubic root of 23289361 is about 285.5743460298.

The spelling of 23289361 in words is "twenty-three million, two hundred eighty-nine thousand, three hundred sixty-one".

Divisors: 1 1409 16529 23289361