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322 = 2723
BaseRepresentation
bin101000010
3102221
411002
52242
61254
7640
oct502
9387
10322
11273
1222a
131ba
14190
15167
hex142

322 has 8 divisors (see below), whose sum is σ = 576. Its totient is φ = 132.

The previous prime is 317. The next prime is 331. The reversal of 322 is 223.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a Lucas number.

It is a plaindrome in base 12 and base 15.

It is a nialpdrome in base 7 and base 10.

It is an unprimeable number.

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

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3 + ... + 25.

It is an arithmetic number, because the mean of its divisors is an integer number (72).

322 is a deficient number, since it is larger than the sum of its proper divisors (254).

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

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

The sum of its prime factors is 32.

The product of its digits is 12, while the sum is 7.

The square root of 322 is about 17.9443584449. The cubic root of 322 is about 6.8541240018.

The spelling of 322 in words is "three hundred twenty-two", and is thus an aban number and an iban number.

Divisors: 1 2 7 14 23 46 161 322