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23012012 = 2223324691
BaseRepresentation
bin101011111001…
…0001010101100
31121022010112202
41113302022230
521342341022
62141121032
7366412262
oct127621254
947263482
1023012012
1111a982a1
127859178
1349c939a
1430b0432
152048592
hex15f22ac

23012012 has 12 divisors (see below), whose sum is σ = 40445496. Its totient is φ = 11456160.

The previous prime is 23011997. The next prime is 23012047. The reversal of 23012012 is 21021032.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23011984 and 23012002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11414 + ... + 13277.

It is an arithmetic number, because the mean of its divisors is an integer number (3370458).

Almost surely, 223012012 is an apocalyptic number.

It is an amenable number.

23012012 is a deficient number, since it is larger than the sum of its proper divisors (17433484).

23012012 is a wasteful number, since it uses less digits than its factorization.

23012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24928 (or 24926 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 23012012 is about 4797.0836974145. The cubic root of 23012012 is about 284.4361973837.

Adding to 23012012 its reverse (21021032), we get a palindrome (44033044).

The spelling of 23012012 in words is "twenty-three million, twelve thousand, twelve".

Divisors: 1 2 4 233 466 932 24691 49382 98764 5753003 11506006 23012012