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23126105 = 54625221
BaseRepresentation
bin101100000111…
…0000001011001
31121111221001102
41120032001121
521410013410
62143401145
7400366022
oct130160131
947457042
1023126105
1112065a92
1278b31b5
134a392b2
1430ddc49
15206c2a5
hex160e059

23126105 has 4 divisors (see below), whose sum is σ = 27751332. Its totient is φ = 18500880.

The previous prime is 23126057. The next prime is 23126107. The reversal of 23126105 is 50162132.

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 13719616 + 9406489 = 3704^2 + 3067^2 .

It is not a de Polignac number, because 23126105 - 218 = 22863961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23126107) 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, 2312606 + ... + 2312615.

It is an arithmetic number, because the mean of its divisors is an integer number (6937833).

Almost surely, 223126105 is an apocalyptic number.

It is an amenable number.

23126105 is a deficient number, since it is larger than the sum of its proper divisors (4625227).

23126105 is an equidigital number, since it uses as much as digits as its factorization.

23126105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4625226.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 23126105 is about 4808.9609064745. The cubic root of 23126105 is about 284.9054985749.

Adding to 23126105 its reverse (50162132), we get a palindrome (73288237).

The spelling of 23126105 in words is "twenty-three million, one hundred twenty-six thousand, one hundred five".

Divisors: 1 5 4625221 23126105