Search a number
-
+
23389497 = 324216173
BaseRepresentation
bin101100100111…
…0010100111001
31122000022100200
41121032110321
521441430442
62153152413
7402543645
oct131162471
948008320
1023389497
111222596a
1279bb709
134acc151
14316bc25
1520c034c
hex164e539

23389497 has 12 divisors (see below), whose sum is σ = 33870564. Its totient is φ = 15553440.

The previous prime is 23389417. The next prime is 23389507. The reversal of 23389497 is 79498332.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 147456 + 23242041 = 384^2 + 4821^2 .

It is not a de Polignac number, because 23389497 - 28 = 23389241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23389417) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 703 + ... + 6875.

It is an arithmetic number, because the mean of its divisors is an integer number (2822547).

Almost surely, 223389497 is an apocalyptic number.

It is an amenable number.

23389497 is a deficient number, since it is larger than the sum of its proper divisors (10481067).

23389497 is a wasteful number, since it uses less digits than its factorization.

23389497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6600 (or 6597 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 23389497 is about 4836.2689131189. The cubic root of 23389497 is about 285.9830503265.

The spelling of 23389497 in words is "twenty-three million, three hundred eighty-nine thousand, four hundred ninety-seven".

Divisors: 1 3 9 421 1263 3789 6173 18519 55557 2598833 7796499 23389497