226 has 4 divisors (see below), whose sum is σ = 342. Its totient is φ = 112.

The previous prime is 223. The next prime is 227. The reversal of 226 is 622.

Subtracting from 226 its sum of digits (10), we obtain a cube (216 = 6^{3}).

Subtracting from 226 its product of digits (24), we obtain a palindrome (202).

Adding to 226 its reverse (622), we get a palindrome (848).

It can be divided in two parts, 22 and 6, that added together give a triangular number (28 = T_{7}).

It is a happy number.

226 is nontrivially palindromic in base 15.

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

It is a Cunningham number, because it is equal to 15^{2}+1.

226 is an esthetic number in base 15, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 622 = 2 ⋅311.

It can be written as a sum of positive squares in only one way, i.e., 225 + 1 = 15^2 + 1^2 .

It is a d-powerful number, because it can be written as **2** + **2**^{3} + **6**^{3} .

226 is an undulating number in base 15.

It is a plaindrome in base 10, base 12, base 13 and base 14.

It is a nialpdrome in base 7 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55 + ... + 58.

2^{226} is an apocalyptic number.

226 is the 10-th centered pentagonal number.

226 is a deficient number, since it is larger than the sum of its proper divisors (116).

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

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

The sum of its prime factors is 115.

The product of its digits is 24, while the sum is 10.

The square root of 226 is about 15.0332963784. The cubic root of 226 is about 6.0911993489.

The spelling of 226 in words is "two hundred twenty-six", and thus it is an aban number.

• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.042 sec. • engine limits •