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326881 is a prime number
BaseRepresentation
bin1001111110011100001
3121121101201
41033303201
540430011
611001201
72531002
oct1176341
9547351
10326881
11203655
12139201
13b5a29
14871a9
1566cc1
hex4fce1

326881 has 2 divisors, whose sum is σ = 326882. Its totient is φ = 326880.

The previous prime is 326873. The next prime is 326903. The reversal of 326881 is 188623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312481 + 14400 = 559^2 + 120^2 .

It is a cyclic number.

It is not a de Polignac number, because 326881 - 23 = 326873 is a prime.

It is a super-2 number, since 2×3268812 = 213702376322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (326831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163440 + 163441.

It is an arithmetic number, because the mean of its divisors is an integer number (163441).

2326881 is an apocalyptic number.

It is an amenable number.

326881 is a deficient number, since it is larger than the sum of its proper divisors (1).

326881 is an equidigital number, since it uses as much as digits as its factorization.

326881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 28.

The square root of 326881 is about 571.7350785110. The cubic root of 326881 is about 68.8858295362.

The spelling of 326881 in words is "three hundred twenty-six thousand, eight hundred eighty-one".