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23213044 = 227973459
BaseRepresentation
bin101100010001…
…1001111110100
31121200100022101
41120203033310
521420304134
62145311444
7401210341
oct130431764
947610271
1023213044
1112115338
127935584
134a69a3a
1431237c8
152087e14
hex16233f4

23213044 has 12 divisors (see below), whose sum is σ = 41137600. Its totient is φ = 11459448.

The previous prime is 23213033. The next prime is 23213059. The reversal of 23213044 is 44031232.

It is a congruent number.

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, 36414 + ... + 37045.

Almost surely, 223213044 is an apocalyptic number.

It is an amenable number.

23213044 is a deficient number, since it is larger than the sum of its proper divisors (17924556).

23213044 is a wasteful number, since it uses less digits than its factorization.

23213044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73542 (or 73540 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 23213044 is about 4817.9916977928. The cubic root of 23213044 is about 285.2620714450.

Adding to 23213044 its reverse (44031232), we get a palindrome (67244276).

The spelling of 23213044 in words is "twenty-three million, two hundred thirteen thousand, forty-four".

Divisors: 1 2 4 79 158 316 73459 146918 293836 5803261 11606522 23213044