Search a number
382 = 2191

382 has 4 divisors (see below), whose sum is σ = 576. Its totient is φ = 190.

The previous prime is 379. The next prime is 383. The reversal of 382 is 283.

Multipling 382 by its product of digits (48), we get a triangular number (18336 = T191).

Subtracting from 382 its reverse (283), we obtain a palindrome (99).

382 is nontrivially palindromic in base 9.

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

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

382 is an undulating number in base 9.

It is a plaindrome in base 12, base 13 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383) 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 as a sum of consecutive naturals, namely, 94 + ... + 97.

It is an arithmetic number, because the mean of its divisors is an integer number (144).

2382 is an apocalyptic number.

382 is a deficient number, since it is larger than the sum of its proper divisors (194).

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

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

The sum of its prime factors is 193.

The product of its digits is 48, while the sum is 13.

The square root of 382 is about 19.5448202857. The cubic root of 382 is about 7.2558415069.

The spelling of 382 in words is "three hundred eighty-two", and thus it is an aban number.

Divisors: 1 2 191 382