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23051113 = 36776269
BaseRepresentation
bin101011111101…
…1101101101001
31121101010011221
41113323231221
521400113423
62142022041
7366634261
oct127735551
947333157
1023051113
1112014708
127877921
134a11117
1430c07a1
152054e5d
hex15fbb69

23051113 has 4 divisors (see below), whose sum is σ = 23061060. Its totient is φ = 23041168.

The previous prime is 23051081. The next prime is 23051183. The reversal of 23051113 is 31115032.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 13046544 + 10004569 = 3612^2 + 3163^2 .

It is a cyclic number.

It is not a de Polignac number, because 23051113 - 25 = 23051081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23051183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543 + ... + 6811.

It is an arithmetic number, because the mean of its divisors is an integer number (5765265).

Almost surely, 223051113 is an apocalyptic number.

It is an amenable number.

23051113 is a deficient number, since it is larger than the sum of its proper divisors (9947).

23051113 is an equidigital number, since it uses as much as digits as its factorization.

23051113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9946.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 23051113 is about 4801.1574646120. The cubic root of 23051113 is about 284.5972067224.

Adding to 23051113 its reverse (31115032), we get a palindrome (54166145).

The spelling of 23051113 in words is "twenty-three million, fifty-one thousand, one hundred thirteen".

Divisors: 1 3677 6269 23051113