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23232013 = 717197991
BaseRepresentation
bin101100010011…
…1111000001101
31121201022022221
41120213320031
521421411023
62145535341
7401316550
oct130477015
947638287
1023232013
1112128612
127944551
134a7556c
14312a697
15208d85d
hex1627e0d

23232013 has 16 divisors (see below), whose sum is σ = 28283904. Its totient is φ = 18627840.

The previous prime is 23232007. The next prime is 23232019. The reversal of 23232013 is 31023232.

It is an interprime number because it is at equal distance from previous prime (23232007) and next prime (23232019).

It is a de Polignac number, because none of the positive numbers 2k-23232013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23232019) 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 15 ways as a sum of consecutive naturals, for example, 22948 + ... + 23938.

It is an arithmetic number, because the mean of its divisors is an integer number (1767744).

Almost surely, 223232013 is an apocalyptic number.

It is an amenable number.

23232013 is a deficient number, since it is larger than the sum of its proper divisors (5051891).

23232013 is a wasteful number, since it uses less digits than its factorization.

23232013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 23232013 is about 4819.9598546046. The cubic root of 23232013 is about 285.3397528119.

Adding to 23232013 its reverse (31023232), we get a palindrome (54255245).

The spelling of 23232013 in words is "twenty-three million, two hundred thirty-two thousand, thirteen".

Divisors: 1 7 17 119 197 991 1379 3349 6937 16847 23443 117929 195227 1366589 3318859 23232013