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304192869 = 3195336717
BaseRepresentation
bin10010001000011…
…001110101100101
3210012101121011120
4102020121311211
51110333132434
650103524153
710352411451
oct2210316545
9705347146
10304192869
11146788672
1285a59659
134b0383a6
142c585661
151ba8b349
hex12219d65

304192869 has 8 divisors (see below), whose sum is σ = 426937440. Its totient is φ = 192121776.

The previous prime is 304192807. The next prime is 304192877. The reversal of 304192869 is 968291403.

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

It is not a de Polignac number, because 304192869 - 27 = 304192741 is a prime.

It is a super-2 number, since 2×3041928692 = 185066603100902322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 304192869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304192969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2668302 + ... + 2668415.

It is an arithmetic number, because the mean of its divisors is an integer number (53367180).

Almost surely, 2304192869 is an apocalyptic number.

It is an amenable number.

304192869 is a deficient number, since it is larger than the sum of its proper divisors (122744571).

304192869 is a wasteful number, since it uses less digits than its factorization.

304192869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5336739.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 304192869 is about 17441.1257950856. The cubic root of 304192869 is about 672.5372488500.

The spelling of 304192869 in words is "three hundred four million, one hundred ninety-two thousand, eight hundred sixty-nine".

Divisors: 1 3 19 57 5336717 16010151 101397623 304192869