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1276 = 221129
BaseRepresentation
bin10011111100
31202021
4103330
520101
65524
73502
oct2374
91667
101276
11a60
128a4
13772
14672
155a1
hex4fc

1276 has 12 divisors (see below), whose sum is σ = 2520. Its totient is φ = 560.

The previous prime is 1259. The next prime is 1277. The reversal of 1276 is 6721.

Adding to 1276 its reverse (6721), we get a palindrome (7997).

Subtracting 1276 from its reverse (6721), we obtain a palindrome (5445).

It can be divided in two parts, 12 and 76, that added together give a palindrome (88).

1276 is nontrivially palindromic in base 3.

It is an alternating number because its digits alternate between odd and even.

It is a pancake number, because a pancake can be divided into 1276 parts by 50 straight cuts.

Its product of digits (84) is a multiple of the sum of its prime divisors (42).

It is a plaindrome in base 9.

It is a nialpdrome in base 11 and base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30 + ... + 58.

It is an arithmetic number, because the mean of its divisors is an integer number (210).

It is an amenable number.

1276 is a deficient number, since it is larger than the sum of its proper divisors (1244).

1276 is a wasteful number, since it uses less digits than its factorization.

1276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44 (or 42 counting only the distinct ones).

The product of its digits is 84, while the sum is 16.

The square root of 1276 is about 35.7211421990. The cubic root of 1276 is about 10.8463485912.

The spelling of 1276 in words is "one thousand, two hundred seventy-six".

Divisors: 1 2 4 11 22 29 44 58 116 319 638 1276