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14209 = 131093
BaseRepresentation
bin11011110000001
3201111021
43132001
5423314
6145441
756266
oct33601
921437
1014209
11a748
128281
136610
14526d
154324
hex3781

14209 has 4 divisors (see below), whose sum is σ = 15316. Its totient is φ = 13104.

The previous prime is 14207. The next prime is 14221. The reversal of 14209 is 90241.

14209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9025 + 5184 = 95^2 + 72^2 .

It is a Wieferich number.

It is not a de Polignac number, because 14209 - 21 = 14207 is a prime.

It is a Duffinian number.

14209 is a lucky number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 14192 and 14201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534 + ... + 559.

It is an arithmetic number, because the mean of its divisors is an integer number (3829).

It is a Proth number, since it is equal to 111 ⋅ 27 + 1 and 111 < 27.

214209 is an apocalyptic number.

It is an amenable number.

14209 is a deficient number, since it is larger than the sum of its proper divisors (1107).

14209 is a wasteful number, since it uses less digits than its factorization.

14209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 14209 is about 119.2015100575. The cubic root of 14209 is about 24.2207640018.

The spelling of 14209 in words is "fourteen thousand, two hundred nine".

Divisors: 1 13 1093 14209