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304530041 = 719342337
BaseRepresentation
bin10010001001101…
…100001001111001
3210020000201200102
4102021230021321
51110424430131
650115045145
710355314454
oct2211541171
9706021612
10304530041
11146998a22
1285ba07b5
134b1259ba
142c63249b
151bb061cb
hex1226c279

304530041 has 4 divisors (see below), whose sum is σ = 304579572. Its totient is φ = 304480512.

The previous prime is 304530029. The next prime is 304530047. The reversal of 304530041 is 140035403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140035403 = 294828807.

It can be written as a sum of positive squares in 2 ways, for example, as 124970041 + 179560000 = 11179^2 + 13400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-304530041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304529995 and 304530022.

It is not an unprimeable number, because it can be changed into a prime (304530047) 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 3 ways as a sum of consecutive naturals, for example, 13976 + ... + 28361.

It is an arithmetic number, because the mean of its divisors is an integer number (76144893).

Almost surely, 2304530041 is an apocalyptic number.

It is an amenable number.

304530041 is a deficient number, since it is larger than the sum of its proper divisors (49531).

304530041 is an equidigital number, since it uses as much as digits as its factorization.

304530041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49530.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 304530041 is about 17450.7891225583. The cubic root of 304530041 is about 672.7856406022.

Adding to 304530041 its reverse (140035403), we get a palindrome (444565444).

The spelling of 304530041 in words is "three hundred four million, five hundred thirty thousand, forty-one".

Divisors: 1 7193 42337 304530041