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BaseRepresentation
bin11110100
3100001
43310
51434
61044
7466
oct364
9301
10244
11202
12184
1315a
14136
15114
hexf4

244 has 6 divisors (see below), whose sum is σ = 434. Its totient is φ = 120.

The previous prime is 241. The next prime is 251. The reversal of 244 is 442.

Adding to 244 its product of digits (32), we get a triangular number (276 = T23).

Subtracting from 244 its product of digits (32), we obtain a palindrome (212).

Adding to 244 its reverse (442), we get a palindrome (686).

It can be divided in two parts, 24 and 4, that added together give a triangular number (28 = T7).

244 = T9 + T10 + ... + T12.

244 is nontrivially palindromic in base 3 and base 11.

It is a Cunningham number, because it is equal to 35+1.

It can be written as a sum of positive squares in only one way, i.e., 144 + 100 = 12^2 + 10^2 .

244 is an anti-perfect number.

It is a fibodiv number, since the Fibonacci-like sequence with seeds 24 and 4 contains 244 itself.

It is a nude number because it is divisible by every one of its digits.

244 is an undulating number in base 11.

It is a plaindrome in base 7, base 10, base 13, base 14 and base 15.

It is a nialpdrome in base 4 and base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241) 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, 27 + ... + 34.

It is an amenable number.

244 is a deficient number, since it is larger than the sum of its proper divisors (190).

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

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

The sum of its prime factors is 65 (or 63 counting only the distinct ones).

The product of its digits is 32, while the sum is 10.

The square root of 244 is about 15.6204993518. The cubic root of 244 is about 6.2487997695.

The spelling of 244 in words is "two hundred forty-four", and thus it is an aban number and an iban number.

Divisors: 1 2 4 61 122 244