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329081 is a prime number
BaseRepresentation
bin1010000010101111001
3121201102012
41100111321
541012311
611015305
72540264
oct1202571
9551365
10329081
11205275
1213a535
13b6a2c
1487cdb
156778b
hex50579

329081 has 2 divisors, whose sum is σ = 329082. Its totient is φ = 329080.

The previous prime is 329059. The next prime is 329083. The reversal of 329081 is 180923.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173056 + 156025 = 416^2 + 395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-329081 is a prime.

It is a super-2 number, since 2×3290812 = 216588609122, which contains 22 as substring.

Together with 329083, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p28328 and since 329081 and 28328 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (329083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164540 + 164541.

It is an arithmetic number, because the mean of its divisors is an integer number (164541).

2329081 is an apocalyptic number.

It is an amenable number.

329081 is a deficient number, since it is larger than the sum of its proper divisors (1).

329081 is an equidigital number, since it uses as much as digits as its factorization.

329081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 329081 is about 573.6558201570. The cubic root of 329081 is about 69.0400243879.

The spelling of 329081 in words is "three hundred twenty-nine thousand, eighty-one".