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1226 = 2613
BaseRepresentation
bin10011001010
31200102
4103022
514401
65402
73401
oct2312
91612
101226
11a15
12862
13734
14638
1556b
hex4ca

1226 has 4 divisors (see below), whose sum is σ = 1842. Its totient is φ = 612.

The previous prime is 1223. The next prime is 1229. The reversal of 1226 is 6221.

Adding to 1226 its reverse (6221), we get a palindrome (7447).

It can be divided in two parts, 122 and 6, that added together give a 7-th power (128 = 27).

1226 = 42 + 52 + ... + 152.

It is a Cunningham number, because it is equal to 352+1.

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

It is an interprime number because it is at equal distance from previous prime (1223) and next prime (1229).

It can be written as a sum of positive squares in only one way, i.e., 1225 + 1 = 35^2 + 1^2 .

It is a pancake number, because a pancake can be divided into 1226 parts by 49 straight cuts.

It is a plaindrome in base 10 and base 15.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (1223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305 + ... + 308.

1226 is a deficient number, since it is larger than the sum of its proper divisors (616).

1226 is an equidigital number, since it uses as much as digits as its factorization.

1226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615.

The product of its digits is 24, while the sum is 11.

The square root of 1226 is about 35.0142828000. The cubic root of 1226 is about 10.7027855443.

The spelling of 1226 in words is "one thousand, two hundred twenty-six".

Divisors: 1 2 613 1226