196 has 9 divisors (see below), whose sum is σ = 399. Its totient is φ = 84.

The previous prime is 193. The next prime is 197. The reversal of 196 is 691.

Adding to 196 its sum of digits (16), we get a palindrome (212).

Multipling 196 by its sum of digits (16), we get a square (3136 = 56^{2}).

It can be divided in two parts, 19 and 6, that added together give a square (25 = 5^{2}).

196 = T_{13} + T_{14}.

The square root of 196 is 14.

It is a perfect power (a square), and thus also a powerful number.

196 is nontrivially palindromic in base 13.

196 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

196 is an undulating number in base 13.

Its product of digits (54) is a multiple of the sum of its prime divisors (9).

It is a plaindrome in base 9, base 11 and base 12.

It is a nialpdrome in base 7, base 14, base 15 and base 16.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 25 + ... + 31.

196 is the 14-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196

196 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

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

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

The sum of its prime factors is 18 (or 9 counting only the distinct ones).

The product of its digits is 54, while the sum is 16.

The cubic root of 196 is about 5.8087857336.

The spelling of 196 in words is "one hundred ninety-six", and thus it is an aban number.

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