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23123029 is a prime number
BaseRepresentation
bin101100000110…
…1010001010101
31121111202211111
41120031101111
521404414104
62143335021
7400354036
oct130152125
947452744
1023123029
1112063746
1278b1471
134a37a87
1430dca8d
15206b404
hex160d455

23123029 has 2 divisors, whose sum is σ = 23123030. Its totient is φ = 23123028.

The previous prime is 23122991. The next prime is 23123047. The reversal of 23123029 is 92032132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22944100 + 178929 = 4790^2 + 423^2 .

It is a cyclic number.

It is not a de Polignac number, because 23123029 - 215 = 23090261 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23123729) 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 as a sum of consecutive naturals, namely, 11561514 + 11561515.

It is an arithmetic number, because the mean of its divisors is an integer number (11561515).

Almost surely, 223123029 is an apocalyptic number.

It is an amenable number.

23123029 is a deficient number, since it is larger than the sum of its proper divisors (1).

23123029 is an equidigital number, since it uses as much as digits as its factorization.

23123029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 23123029 is about 4808.6410762293. The cubic root of 23123029 is about 284.8928662680.

The spelling of 23123029 in words is "twenty-three million, one hundred twenty-three thousand, twenty-nine".