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23126669 = 52144389
BaseRepresentation
bin101100000111…
…0001010001101
31121111221211022
41120032022031
521410023134
62143403525
7400400456
oct130161215
947457738
1023126669
1112066455
1278b35a5
134a39627
14310012d
15206c52e
hex160e28d

23126669 has 4 divisors (see below), whose sum is σ = 23171580. Its totient is φ = 23081760.

The previous prime is 23126657. The next prime is 23126683. The reversal of 23126669 is 96662132.

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 16104169 + 7022500 = 4013^2 + 2650^2 .

It is a cyclic number.

It is not a de Polignac number, because 23126669 - 28 = 23126413 is a prime.

It is a super-2 number, since 2×231266692 = 1069685638071122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23126699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21674 + ... + 22715.

It is an arithmetic number, because the mean of its divisors is an integer number (5792895).

Almost surely, 223126669 is an apocalyptic number.

It is an amenable number.

23126669 is a deficient number, since it is larger than the sum of its proper divisors (44911).

23126669 is an equidigital number, since it uses as much as digits as its factorization.

23126669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44910.

The product of its digits is 23328, while the sum is 35.

The square root of 23126669 is about 4809.0195466436. The cubic root of 23126669 is about 284.9078146501.

The spelling of 23126669 in words is "twenty-three million, one hundred twenty-six thousand, six hundred sixty-nine".

Divisors: 1 521 44389 23126669