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23101889 is a prime number
BaseRepresentation
bin101100000100…
…0000111000001
31121110200211112
41120020013001
521403230024
62143053105
7400235306
oct130100701
947420745
1023101889
1112049878
1278a1195
134a2b275
1430d50ad
15206500e
hex16081c1

23101889 has 2 divisors, whose sum is σ = 23101890. Its totient is φ = 23101888.

The previous prime is 23101873. The next prime is 23101921. The reversal of 23101889 is 98810132.

It is an a-pointer prime, because the next prime (23101921) can be obtained adding 23101889 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14691889 + 8410000 = 3833^2 + 2900^2 .

It is a cyclic number.

It is not a de Polignac number, because 23101889 - 24 = 23101873 is a prime.

It is not a weakly prime, because it can be changed into another prime (23101829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11550944 + 11550945.

It is an arithmetic number, because the mean of its divisors is an integer number (11550945).

Almost surely, 223101889 is an apocalyptic number.

It is an amenable number.

23101889 is a deficient number, since it is larger than the sum of its proper divisors (1).

23101889 is an equidigital number, since it uses as much as digits as its factorization.

23101889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 23101889 is about 4806.4424473825. The cubic root of 23101889 is about 284.8060196369.

The spelling of 23101889 in words is "twenty-three million, one hundred one thousand, eight hundred eighty-nine".