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304020426 = 2359385447
BaseRepresentation
bin10010000111101…
…111101111001010
3210012001211121210
4102013233233022
51110312123201
650100113550
710351062633
oct2207575712
9705054553
10304020426
11146680056
12859958b6
134aca7a58
142c53c88a
151ba551d6
hex121efbca

304020426 has 16 divisors (see below), whose sum is σ = 609073344. Its totient is φ = 101168064.

The previous prime is 304020397. The next prime is 304020481. The reversal of 304020426 is 624020403.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 39166 + ... + 46281.

It is an arithmetic number, because the mean of its divisors is an integer number (38067084).

Almost surely, 2304020426 is an apocalyptic number.

304020426 is an abundant number, since it is smaller than the sum of its proper divisors (305052918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

304020426 is a wasteful number, since it uses less digits than its factorization.

304020426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86045.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 304020426 is about 17436.1815200462. The cubic root of 304020426 is about 672.4101406080.

Adding to 304020426 its reverse (624020403), we get a palindrome (928040829).

The spelling of 304020426 in words is "three hundred four million, twenty thousand, four hundred twenty-six".

Divisors: 1 2 3 6 593 1186 1779 3558 85447 170894 256341 512682 50670071 101340142 152010213 304020426