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23110146 = 2321283897
BaseRepresentation
bin101100000101…
…0001000000010
31121111010011100
41120022020002
521404011041
62143155230
7400301343
oct130121002
947433140
1023110146
1112054aa4
1278a5b16
134a31c57
1430d80ca
1520676b6
hex160a202

23110146 has 12 divisors (see below), whose sum is σ = 50072022. Its totient is φ = 7703376.

The previous prime is 23110141. The next prime is 23110151. The reversal of 23110146 is 64101132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23110141) and next prime (23110151).

It can be written as a sum of positive squares in only one way, i.e., 21762225 + 1347921 = 4665^2 + 1161^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1283897 = 23110146 / (2 + 3 + 1 + 1 + 0 + 1 + 4 + 6).

It is not an unprimeable number, because it can be changed into a prime (23110141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 641931 + ... + 641966.

Almost surely, 223110146 is an apocalyptic number.

23110146 is an abundant number, since it is smaller than the sum of its proper divisors (26961876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23110146 is a wasteful number, since it uses less digits than its factorization.

23110146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283905 (or 1283902 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 23110146 is about 4807.3013219477. The cubic root of 23110146 is about 284.8399470673.

Adding to 23110146 its reverse (64101132), we get a palindrome (87211278).

The spelling of 23110146 in words is "twenty-three million, one hundred ten thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 18 1283897 2567794 3851691 7703382 11555073 23110146