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BaseRepresentation
bin101100000111…
…1001100001001
31121112011121121
41120033030021
521410142024
62143435241
7400415665
oct130171411
947464547
1023130889
1112069641
1278b5b21
134a3b522
1431018a5
15206d8e4
hex160f309

23130889 has 2 divisors, whose sum is σ = 23130890. Its totient is φ = 23130888.

The previous prime is 23130881. The next prime is 23130901. The reversal of 23130889 is 98803132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18636489 + 4494400 = 4317^2 + 2120^2 .

It is a cyclic number.

It is not a de Polignac number, because 23130889 - 23 = 23130881 is a prime.

It is not a weakly prime, because it can be changed into another prime (23130881) 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, 11565444 + 11565445.

It is an arithmetic number, because the mean of its divisors is an integer number (11565445).

Almost surely, 223130889 is an apocalyptic number.

It is an amenable number.

23130889 is a deficient number, since it is larger than the sum of its proper divisors (1).

23130889 is an equidigital number, since it uses as much as digits as its factorization.

23130889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 23130889 is about 4809.4582855037. The cubic root of 23130889 is about 284.9251429542.

The spelling of 23130889 in words is "twenty-three million, one hundred thirty thousand, eight hundred eighty-nine".