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329249291 = 7233320161
BaseRepresentation
bin10011100111111…
…111001000001011
3211221112121010012
4103213333020023
51133241434131
652400542135
711105400320
oct2347771013
9757477105
10329249291
11159941958
129232194b
135329c187
1431a28b47
151dd8a52b
hex139ff20b

329249291 has 8 divisors (see below), whose sum is σ = 376464864. Its totient is φ = 282078720.

The previous prime is 329249257. The next prime is 329249299. The reversal of 329249291 is 192942923.

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

It is a de Polignac number, because none of the positive numbers 2k-329249291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (329249299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6251 + ... + 26411.

It is an arithmetic number, because the mean of its divisors is an integer number (47058108).

Almost surely, 2329249291 is an apocalyptic number.

329249291 is a deficient number, since it is larger than the sum of its proper divisors (47215573).

329249291 is a wasteful number, since it uses less digits than its factorization.

329249291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22501.

The product of its digits is 69984, while the sum is 41.

The square root of 329249291 is about 18145.2277748173. The cubic root of 329249291 is about 690.5179133349.

The spelling of 329249291 in words is "three hundred twenty-nine million, two hundred forty-nine thousand, two hundred ninety-one".

Divisors: 1 7 2333 16331 20161 141127 47035613 329249291