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13018 = 223283
BaseRepresentation
bin11001011011010
3122212011
43023122
5404033
6140134
752645
oct31332
918764
1013018
119865
12764a
135c05
144a5c
153ccd
hex32da

13018 has 8 divisors (see below), whose sum is σ = 20448. Its totient is φ = 6204.

The previous prime is 13009. The next prime is 13033. The reversal of 13018 is 81031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 15.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 12989 and 13007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96 + ... + 187.

It is an arithmetic number, because the mean of its divisors is an integer number (2556).

213018 is an apocalyptic number.

13018 is a deficient number, since it is larger than the sum of its proper divisors (7430).

13018 is a wasteful number, since it uses less digits than its factorization.

13018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 13018 is about 114.0964504268. The cubic root of 13018 is about 23.5241941862.

Adding to 13018 its sum of digits (13), we get a palindrome (13031).

Adding to 13018 its reverse (81031), we get a palindrome (94049).

The spelling of 13018 in words is "thirteen thousand, eighteen".

Divisors: 1 2 23 46 283 566 6509 13018