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304068081 = 3829122263
BaseRepresentation
bin10010000111111…
…011010111110001
3210012011020222210
4102013323113301
51110320134311
650101122333
710351351602
oct2207732761
9705136883
10304068081
11146702939
12859b93a9
134acc3655
142c551da9
151ba643a6
hex121fb5f1

304068081 has 8 divisors (see below), whose sum is σ = 405916480. Its totient is φ = 202465872.

The previous prime is 304068071. The next prime is 304068097. The reversal of 304068081 is 180860403.

It is a happy number.

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

It is not a de Polignac number, because 304068081 - 215 = 304035313 is a prime.

It is a super-2 number, since 2×3040680812 = 184914795766045122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304068031) 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, 58645 + ... + 63618.

It is an arithmetic number, because the mean of its divisors is an integer number (50739560).

Almost surely, 2304068081 is an apocalyptic number.

It is an amenable number.

304068081 is a deficient number, since it is larger than the sum of its proper divisors (101848399).

304068081 is a wasteful number, since it uses less digits than its factorization.

304068081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123095.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 304068081 is about 17437.5480214393. The cubic root of 304068081 is about 672.4452720535.

The spelling of 304068081 in words is "three hundred four million, sixty-eight thousand, eighty-one".

Divisors: 1 3 829 2487 122263 366789 101356027 304068081