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304536031 = 2313240697
BaseRepresentation
bin10010001001101…
…101100111011111
3210020001000220021
4102021231213133
51110430123111
650115133011
710355341102
oct2211554737
9706030807
10304536031
111469a2478
1285ba4167
134b128647
142c634739
151bb07d71
hex1226d9df

304536031 has 4 divisors (see below), whose sum is σ = 317776752. Its totient is φ = 291295312.

The previous prime is 304535981. The next prime is 304536049. The reversal of 304536031 is 130635403.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 304536031 - 215 = 304503263 is a prime.

It is a super-2 number, since 2×3045360312 = 185484388354465922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304535987 and 304536005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304536431) 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 3 ways as a sum of consecutive naturals, for example, 6620326 + ... + 6620371.

It is an arithmetic number, because the mean of its divisors is an integer number (79444188).

Almost surely, 2304536031 is an apocalyptic number.

304536031 is a deficient number, since it is larger than the sum of its proper divisors (13240721).

304536031 is a wasteful number, since it uses less digits than its factorization.

304536031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13240720.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 304536031 is about 17450.9607471910. The cubic root of 304536031 is about 672.7900517264.

The spelling of 304536031 in words is "three hundred four million, five hundred thirty-six thousand, thirty-one".

Divisors: 1 23 13240697 304536031