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23020112 = 247319709
BaseRepresentation
bin101011111010…
…0001001010000
31121022112122202
41113310021100
521343120422
62141222332
7366445013
oct127641120
947275582
1023020112
1111aa3395
1278619a8
1349ccc8b
1430b337a
15204ab92
hex15f4250

23020112 has 20 divisors (see below), whose sum is σ = 45214740. Its totient is φ = 11351808.

The previous prime is 23020111. The next prime is 23020181. The reversal of 23020112 is 21102032.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12418576 + 10601536 = 3524^2 + 3256^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23020093 and 23020102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23020111) 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 in 3 ways as a sum of consecutive naturals, for example, 8687 + ... + 11022.

It is an arithmetic number, because the mean of its divisors is an integer number (2260737).

Almost surely, 223020112 is an apocalyptic number.

It is an amenable number.

23020112 is a deficient number, since it is larger than the sum of its proper divisors (22194628).

23020112 is a wasteful number, since it uses less digits than its factorization.

23020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19790 (or 19784 counting only the distinct ones).

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

The square root of 23020112 is about 4797.9278860775. The cubic root of 23020112 is about 284.4695663757.

Adding to 23020112 its reverse (21102032), we get a palindrome (44122144).

It can be divided in two parts, 23020 and 112, that added together give a palindrome (23132).

The spelling of 23020112 in words is "twenty-three million, twenty thousand, one hundred twelve".

Divisors: 1 2 4 8 16 73 146 292 584 1168 19709 39418 78836 157672 315344 1438757 2877514 5755028 11510056 23020112