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304131421420 = 22596715725513
BaseRepresentation
bin1000110110011111010…
…01010011010011101100
31002002000102220222111021
410123033221103103230
514440330120441140
6351414355503524
730654442266631
oct4331751232354
91062012828437
10304131421420
11107a88293372
124ab38bb7ba4
13228aaa45a78
1410a11b06188
157da0243b4a
hex46cfa534ec

304131421420 has 24 divisors (see below), whose sum is σ = 639336497184. Its totient is φ = 121526756736.

The previous prime is 304131421381. The next prime is 304131421453. The reversal of 304131421420 is 24124131403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7843417 + ... + 7882096.

It is an arithmetic number, because the mean of its divisors is an integer number (26639020716).

Almost surely, 2304131421420 is an apocalyptic number.

It is an amenable number.

304131421420 is an abundant number, since it is smaller than the sum of its proper divisors (335205075764).

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

304131421420 is a wasteful number, since it uses less digits than its factorization.

304131421420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15726489 (or 15726487 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 304131421420 its reverse (24124131403), we get a palindrome (328255552823).

The spelling of 304131421420 in words is "three hundred four billion, one hundred thirty-one million, four hundred twenty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 967 1934 3868 4835 9670 19340 15725513 31451026 62902052 78627565 157255130 314510260 15206571071 30413142142 60826284284 76032855355 152065710710 304131421420