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14191 = 23617
BaseRepresentation
bin11011101101111
3201110121
43131233
5423231
6145411
756242
oct33557
921417
1014191
11a731
128267
1365c8
145259
154311
hex376f

14191 has 4 divisors (see below), whose sum is σ = 14832. Its totient is φ = 13552.

The previous prime is 14177. The next prime is 14197. The reversal of 14191 is 19141.

Subtracting 14191 from its reverse (19141), we obtain a triangular number (4950 = T99).

It can be divided in two parts, 141 and 91, that added together give a palindrome (232).

14191 = T23 + T24 + ... + T45.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 14191 - 25 = 14159 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a nialpdrome in base 11 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14197) 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 3 ways as a sum of consecutive naturals, for example, 286 + ... + 331.

It is an arithmetic number, because the mean of its divisors is an integer number (3708).

214191 is an apocalyptic number.

14191 is a deficient number, since it is larger than the sum of its proper divisors (641).

14191 is an equidigital number, since it uses as much as digits as its factorization.

14191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640.

The product of its digits is 36, while the sum is 16.

The square root of 14191 is about 119.1259837315. The cubic root of 14191 is about 24.2105320366.

The spelling of 14191 in words is "fourteen thousand, one hundred ninety-one".

Divisors: 1 23 617 14191