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13349 = 71907
BaseRepresentation
bin11010000100101
3200022102
43100211
5411344
6141445
753630
oct32045
920272
1013349
11a036
127885
1360cb
144c17
153e4e
hex3425

13349 has 4 divisors (see below), whose sum is σ = 15264. Its totient is φ = 11436.

The previous prime is 13339. The next prime is 13367. The reversal of 13349 is 94331.

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 not a de Polignac number, because 13349 - 28 = 13093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 13349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947 + ... + 960.

It is an arithmetic number, because the mean of its divisors is an integer number (3816).

213349 is an apocalyptic number.

It is an amenable number.

13349 is a deficient number, since it is larger than the sum of its proper divisors (1915).

13349 is an equidigital number, since it uses as much as digits as its factorization.

13349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914.

The product of its digits is 324, while the sum is 20.

The square root of 13349 is about 115.5378725786. The cubic root of 13349 is about 23.7219058384.

The spelling of 13349 in words is "thirteen thousand, three hundred forty-nine".

Divisors: 1 7 1907 13349