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304340434 = 21087139991
BaseRepresentation
bin10010001000111…
…101110111010010
3210012200002120221
4102020331313102
51110402343214
650111023254
710353564616
oct2210756722
9705602527
10304340434
11146879522
1285b0ab2a
134b08a5c8
142c5c3346
151bab9e24
hex1223ddd2

304340434 has 8 divisors (see below), whose sum is σ = 456933888. Its totient is φ = 152029140.

The previous prime is 304340419. The next prime is 304340437. The reversal of 304340434 is 434043403.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 304340399 and 304340408.

It is not an unprimeable number, because it can be changed into a prime (304340437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67822 + ... + 72169.

It is an arithmetic number, because the mean of its divisors is an integer number (57116736).

Almost surely, 2304340434 is an apocalyptic number.

304340434 is a deficient number, since it is larger than the sum of its proper divisors (152593454).

304340434 is a wasteful number, since it uses less digits than its factorization.

304340434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141080.

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 304340434 is about 17445.3556570223. The cubic root of 304340434 is about 672.6459813088.

Adding to 304340434 its reverse (434043403), we get a palindrome (738383837).

The spelling of 304340434 in words is "three hundred four million, three hundred forty thousand, four hundred thirty-four".

Divisors: 1 2 1087 2174 139991 279982 152170217 304340434