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304493005 = 5312816991
BaseRepresentation
bin10010001001100…
…011000111001101
3210012221211212201
4102021203013031
51110422234010
650114201501
710355101465
oct2211430715
9705854781
10304493005
11146973113
1285b83291
134b111b9b
142c622ba5
151baea23a
hex122631cd

304493005 has 16 divisors (see below), whose sum is σ = 378574848. Its totient is φ = 234864000.

The previous prime is 304492999. The next prime is 304493009. The reversal of 304493005 is 500394403.

It is not a de Polignac number, because 304493005 - 23 = 304492997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304493009) 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 15 ways as a sum of consecutive naturals, for example, 40060 + ... + 47050.

It is an arithmetic number, because the mean of its divisors is an integer number (23660928).

Almost surely, 2304493005 is an apocalyptic number.

It is an amenable number.

304493005 is a deficient number, since it is larger than the sum of its proper divisors (74081843).

304493005 is a wasteful number, since it uses less digits than its factorization.

304493005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7308.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 304493005 is about 17449.7279348418. The cubic root of 304493005 is about 672.7583654614.

The spelling of 304493005 in words is "three hundred four million, four hundred ninety-three thousand, five".

Divisors: 1 5 31 155 281 1405 6991 8711 34955 43555 216721 1083605 1964471 9822355 60898601 304493005