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328291 is a prime number
BaseRepresentation
bin1010000001001100011
3121200022221
41100021203
541001131
611011511
72535055
oct1201143
9550287
10328291
11204717
12139b97
13b6572
14878d5
1567411
hex50263

328291 has 2 divisors, whose sum is σ = 328292. Its totient is φ = 328290.

The previous prime is 328283. The next prime is 328303. The reversal of 328291 is 192823.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 328291 - 23 = 328283 is a prime.

It is not a weakly prime, because it can be changed into another prime (328271) 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, 164145 + 164146.

It is an arithmetic number, because the mean of its divisors is an integer number (164146).

2328291 is an apocalyptic number.

328291 is a deficient number, since it is larger than the sum of its proper divisors (1).

328291 is an equidigital number, since it uses as much as digits as its factorization.

328291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

The square root of 328291 is about 572.9668402273. The cubic root of 328291 is about 68.9847337226.

The spelling of 328291 in words is "three hundred twenty-eight thousand, two hundred ninety-one".