Search a number
1316 = 22747

1316 has 12 divisors (see below), whose sum is σ = 2688. Its totient is φ = 552.

The previous prime is 1307. The next prime is 1319. The reversal of 1316 is 6131.

1316 = T14 + T15 + ... + T21.

1316 is an admirable number.

It is a magnanimous number.

It is a plaindrome in base 8.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 1297 and 1306.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 1316.

It is not an unprimeable number, because it can be changed into a prime (1319) by changing a digit.

1316 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5 + ... + 51.

It is an arithmetic number, because the mean of its divisors is an integer number (224).

21316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1344).

1316 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.

1316 is a wasteful number, since it uses less digits than its factorization.

1316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 56 counting only the distinct ones).

The product of its digits is 18, while the sum is 11.

The square root of 1316 is about 36.2767142944. The cubic root of 1316 is about 10.9585214764.

Adding to 1316 its reverse (6131), we get a palindrome (7447).

The spelling of 1316 in words is "one thousand, three hundred sixteen".

Divisors: 1 2 4 7 14 28 47 94 188 329 658 1316