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304314121 = 725341957
BaseRepresentation
bin10010001000110…
…111011100001001
3210012121202111101
4102020313130021
51110401022441
650110301401
710353425116
oct2210673411
9705552441
10304314121
11146860781
1285ab7861
134b07b637
142c5b790d
151bab2231
hex12237709

304314121 has 4 divisors (see below), whose sum is σ = 304363332. Its totient is φ = 304264912.

The previous prime is 304314113. The next prime is 304314133. The reversal of 304314121 is 121413403.

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

It can be written as a sum of positive squares in 2 ways, for example, as 194881600 + 109432521 = 13960^2 + 10461^2 .

It is a cyclic number.

It is not a de Polignac number, because 304314121 - 23 = 304314113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304314721) 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, 13726 + ... + 28231.

It is an arithmetic number, because the mean of its divisors is an integer number (76090833).

Almost surely, 2304314121 is an apocalyptic number.

It is an amenable number.

304314121 is a deficient number, since it is larger than the sum of its proper divisors (49211).

304314121 is an equidigital number, since it uses as much as digits as its factorization.

304314121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49210.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 304314121 is about 17444.6014858466. The cubic root of 304314121 is about 672.6265952947.

Adding to 304314121 its reverse (121413403), we get a palindrome (425727524).

The spelling of 304314121 in words is "three hundred four million, three hundred fourteen thousand, one hundred twenty-one".

Divisors: 1 7253 41957 304314121