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23123071 is a prime number
BaseRepresentation
bin101100000110…
…1010001111111
31121111202220001
41120031101333
521404414241
62143335131
7400354126
oct130152177
947452801
1023123071
1112063784
1278b14a7
134a37aba
1430dcabd
15206b431
hex160d47f

23123071 has 2 divisors, whose sum is σ = 23123072. Its totient is φ = 23123070.

The previous prime is 23123047. The next prime is 23123143. The reversal of 23123071 is 17032132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23123071 - 217 = 22991999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23723071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11561535 + 11561536.

It is an arithmetic number, because the mean of its divisors is an integer number (11561536).

Almost surely, 223123071 is an apocalyptic number.

23123071 is a deficient number, since it is larger than the sum of its proper divisors (1).

23123071 is an equidigital number, since it uses as much as digits as its factorization.

23123071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 23123071 is about 4808.6454433655. The cubic root of 23123071 is about 284.8930387583.

The spelling of 23123071 in words is "twenty-three million, one hundred twenty-three thousand, seventy-one".