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13440206 = 213516931
BaseRepresentation
bin110011010001…
…010011001110
3221021211111102
4303101103032
511420041311
61200023102
7222145163
oct63212316
927254442
1013440206
11764a90a
124601a92
132a276b0
141adc06a
1512a743b
hexcd14ce

13440206 has 8 divisors (see below), whose sum is σ = 21711144. Its totient is φ = 6203160.

The previous prime is 13440199. The next prime is 13440221. The reversal of 13440206 is 60204431.

It is a happy number.

13440206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 258440 + ... + 258491.

It is an arithmetic number, because the mean of its divisors is an integer number (2713893).

Almost surely, 213440206 is an apocalyptic number.

13440206 is a deficient number, since it is larger than the sum of its proper divisors (8270938).

13440206 is a wasteful number, since it uses less digits than its factorization.

13440206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516946.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 13440206 is about 3666.0886514104. The cubic root of 13440206 is about 237.7580928344.

Adding to 13440206 its reverse (60204431), we get a palindrome (73644637).

The spelling of 13440206 in words is "thirteen million, four hundred forty thousand, two hundred six".

Divisors: 1 2 13 26 516931 1033862 6720103 13440206