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13230858 = 238812503
BaseRepresentation
bin110010011110…
…001100001010
3220220012022210
4302132030022
511341341413
61151325550
7220313634
oct62361412
926805283
1013230858
1175175a3
1245208b6
132983314
141a85a54
1512653c3
hexc9e30a

13230858 has 16 divisors (see below), whose sum is σ = 26502336. Its totient is φ = 4403520.

The previous prime is 13230857. The next prime is 13230863. The reversal of 13230858 is 85803231.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13230851) 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 7 ways as a sum of consecutive naturals, for example, 4035 + ... + 6537.

It is an arithmetic number, because the mean of its divisors is an integer number (1656396).

Almost surely, 213230858 is an apocalyptic number.

13230858 is an abundant number, since it is smaller than the sum of its proper divisors (13271478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13230858 is a wasteful number, since it uses less digits than its factorization.

13230858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 13230858 is about 3637.4246383946. The cubic root of 13230858 is about 236.5171675905.

The spelling of 13230858 in words is "thirteen million, two hundred thirty thousand, eight hundred fifty-eight".

Divisors: 1 2 3 6 881 1762 2503 2643 5006 5286 7509 15018 2205143 4410286 6615429 13230858