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23104849 = 199311593
BaseRepresentation
bin101100000100…
…0110101010001
31121110211220011
41120020311101
521403323344
62143114521
7400250035
oct130106521
947424804
1023104849
1112051019
1278a2a41
134a2c711
1430d61c5
152065d34
hex1608d51

23104849 has 4 divisors (see below), whose sum is σ = 23118436. Its totient is φ = 23091264.

The previous prime is 23104841. The next prime is 23104867. The reversal of 23104849 is 94840132.

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 19864849 + 3240000 = 4457^2 + 1800^2 .

It is a cyclic number.

It is not a de Polignac number, because 23104849 - 23 = 23104841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23104849.

It is not an unprimeable number, because it can be changed into a prime (23104841) 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, 3804 + ... + 7789.

It is an arithmetic number, because the mean of its divisors is an integer number (5779609).

Almost surely, 223104849 is an apocalyptic number.

It is an amenable number.

23104849 is a deficient number, since it is larger than the sum of its proper divisors (13587).

23104849 is a wasteful number, since it uses less digits than its factorization.

23104849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13586.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 23104849 is about 4806.7503575701. The cubic root of 23104849 is about 284.8181829975.

The spelling of 23104849 in words is "twenty-three million, one hundred four thousand, eight hundred forty-nine".

Divisors: 1 1993 11593 23104849