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13230613 = 111202783
BaseRepresentation
bin110010011110…
…001000010101
3220220011222201
4302132020111
511341334423
61151324501
7220313134
oct62361025
926804881
1013230613
1175173a0
124520731
132983186
141a8591b
1512652ad
hexc9e215

13230613 has 4 divisors (see below), whose sum is σ = 14433408. Its totient is φ = 12027820.

The previous prime is 13230587. The next prime is 13230619. The reversal of 13230613 is 31603231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13230613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13230619) 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, 601381 + ... + 601402.

It is an arithmetic number, because the mean of its divisors is an integer number (3608352).

Almost surely, 213230613 is an apocalyptic number.

It is an amenable number.

13230613 is a deficient number, since it is larger than the sum of its proper divisors (1202795).

13230613 is a wasteful number, since it uses less digits than its factorization.

13230613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202794.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 13230613 is about 3637.3909605650. The cubic root of 13230613 is about 236.5157076936.

Adding to 13230613 its reverse (31603231), we get a palindrome (44833844).

The spelling of 13230613 in words is "thirteen million, two hundred thirty thousand, six hundred thirteen".

Divisors: 1 11 1202783 13230613