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23125105 = 54625021
BaseRepresentation
bin101100000110…
…1110001110001
31121111212200101
41120031301301
521410000410
62143352401
7400363063
oct130156161
947455611
1023125105
1112065263
1278b2701
134a389c3
1430dd733
15206bd3a
hex160dc71

23125105 has 4 divisors (see below), whose sum is σ = 27750132. Its totient is φ = 18500080.

The previous prime is 23125087. The next prime is 23125127. The reversal of 23125105 is 50152132.

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 14691889 + 8433216 = 3833^2 + 2904^2 .

It is not a de Polignac number, because 23125105 - 223 = 14736497 is a prime.

It is a super-2 number, since 2×231251052 = 1069540962522050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2312506 + ... + 2312515.

It is an arithmetic number, because the mean of its divisors is an integer number (6937533).

Almost surely, 223125105 is an apocalyptic number.

It is an amenable number.

23125105 is a deficient number, since it is larger than the sum of its proper divisors (4625027).

23125105 is an equidigital number, since it uses as much as digits as its factorization.

23125105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4625026.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 23125105 is about 4808.8569327856. The cubic root of 23125105 is about 284.9013919661.

Adding to 23125105 its reverse (50152132), we get a palindrome (73277237).

The spelling of 23125105 in words is "twenty-three million, one hundred twenty-five thousand, one hundred five".

Divisors: 1 5 4625021 23125105