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304225142 = 21327143177
BaseRepresentation
bin10010001000100…
…001101101110110
3210012110020102212
4102020201231312
51110340201032
650104333422
710352604524
oct2210415566
9705406385
10304225142
111467aa941
1285a74272
134b049ca0
142c593314
151ba95bb2
hex12221b76

304225142 has 16 divisors (see below), whose sum is σ = 493265472. Its totient is φ = 139890240.

The previous prime is 304225133. The next prime is 304225147. The reversal of 304225142 is 241522403.

It is a happy number.

304225142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304225147) 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 7 ways as a sum of consecutive naturals, for example, 14543 + ... + 28634.

It is an arithmetic number, because the mean of its divisors is an integer number (30829092).

Almost surely, 2304225142 is an apocalyptic number.

304225142 is a deficient number, since it is larger than the sum of its proper divisors (189040330).

304225142 is a wasteful number, since it uses less digits than its factorization.

304225142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43463.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 304225142 is about 17442.0509688511. The cubic root of 304225142 is about 672.5610320364.

Adding to 304225142 its reverse (241522403), we get a palindrome (545747545).

The spelling of 304225142 in words is "three hundred four million, two hundred twenty-five thousand, one hundred forty-two".

Divisors: 1 2 13 26 271 542 3523 7046 43177 86354 561301 1122602 11700967 23401934 152112571 304225142