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16111 is a prime number
BaseRepresentation
bin11111011101111
3211002201
43323233
51003421
6202331
764654
oct37357
924081
1016111
1111117
1293a7
137444
145c2b
154b91
hex3eef

16111 has 2 divisors, whose sum is σ = 16112. Its totient is φ = 16110.

The previous prime is 16103. The next prime is 16127. The reversal of 16111 is 11161.

16111 is nontrivially palindromic in base 4.

16111 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (11161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16111 - 23 = 16103 is a prime.

It is a pancake number, because a pancake can be divided into 16111 parts by 179 straight cuts.

16111 is a modest number, since divided by 111 gives 16 as remainder.

It is a plaindrome in base 11 and base 16.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8055 + 8056.

It is an arithmetic number, because the mean of its divisors is an integer number (8056).

216111 is an apocalyptic number.

16111 is a deficient number, since it is larger than the sum of its proper divisors (1).

16111 is an equidigital number, since it uses as much as digits as its factorization.

16111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6, while the sum is 10.

The square root of 16111 is about 126.9291140755. The cubic root of 16111 is about 25.2565581109.

Adding to 16111 its reverse (11161), we get a palindrome (27272).

Subtracting from 16111 its reverse (11161), we obtain a triangular number (4950 = T99).

It can be divided in two parts, 161 and 11, that multiplied together give a palindrome (1771).

The spelling of 16111 in words is "sixteen thousand, one hundred eleven".