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304047 = 3311261
BaseRepresentation
bin1001010001110101111
3120110002000
41022032233
534212142
610303343
72404302
oct1121657
9513060
10304047
11198487
12127b53
13a8513
147cb39
156014c
hex4a3af

304047 has 8 divisors (see below), whose sum is σ = 450480. Its totient is φ = 202680.

The previous prime is 304039. The next prime is 304049. The reversal of 304047 is 740403.

It is not a de Polignac number, because 304047 - 23 = 304039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304049) 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 in 7 ways as a sum of consecutive naturals, for example, 5604 + ... + 5657.

It is an arithmetic number, because the mean of its divisors is an integer number (56310).

2304047 is an apocalyptic number.

304047 is a deficient number, since it is larger than the sum of its proper divisors (146433).

304047 is a wasteful number, since it uses less digits than its factorization.

304047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11270 (or 11264 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 304047 is about 551.4045701660. The cubic root of 304047 is about 67.2429731514.

The spelling of 304047 in words is "three hundred four thousand, forty-seven", and thus it is an iban number.

Divisors: 1 3 9 27 11261 33783 101349 304047