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304130131212 = 22337684977773
BaseRepresentation
bin1000110110011111001…
…00011000010100001100
31002002000100111102122210
410123033210120110030
514440324303144322
6351414312110420
730654425314245
oct4331744302414
91062010442583
10304130131212
11107a87591a86
124ab38695410
13228aa6b372b
1410a1188bccc
157da008b70c
hex46cf91850c

304130131212 has 24 divisors (see below), whose sum is σ = 728816351536. Its totient is φ = 98636799168.

The previous prime is 304130131211. The next prime is 304130131219. The reversal of 304130131212 is 212131031403.

It is a super-2 number, since 2×3041301312122 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (304130131211) by changing a digit.

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, 342488443 + ... + 342489330.

Almost surely, 2304130131212 is an apocalyptic number.

It is an amenable number.

304130131212 is an abundant number, since it is smaller than the sum of its proper divisors (424686220324).

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

304130131212 is a wasteful number, since it uses less digits than its factorization.

304130131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684977817 (or 684977815 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 304130131212 its reverse (212131031403), we get a palindrome (516261162615).

The spelling of 304130131212 in words is "three hundred four billion, one hundred thirty million, one hundred thirty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 684977773 1369955546 2054933319 2739911092 4109866638 8219733276 25344177601 50688355202 76032532803 101376710404 152065065606 304130131212