2648 has 8 divisors (see below), whose sum is σ = 4980. Its totient is φ = 1320.

The previous prime is 2647. The next prime is 2657. The reversal of 2648 is 8462.

Subtracting from 2648 its sum of digits (20), we obtain a triangular number (2628 = T_{72}).

It can be divided in two parts, 264 and 8, that multiplied together give a palindrome (2112).

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 13.

It is a nialpdrome in base 14 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2647) by changing a digit.

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

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158 + ... + 173.

It is an amenable number.

2648 is a deficient number, since it is larger than the sum of its proper divisors (2332).

2648 is a wasteful number, since it uses less digits than its factorization.

2648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 333 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 2648 is about 51.4587213211. The cubic root of 2648 is about 13.8347928332.

The spelling of 2648 in words is "two thousand, six hundred forty-eight".

• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.078 sec. • engine limits •