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304113215 = 5728330703
BaseRepresentation
bin10010001000000…
…110011000111111
3210012020112220102
4102020012120333
51110323110330
650102111315
710351630310
oct2210063077
9705215812
10304113215
1114673383a
1285a1b53b
134b00b063
142c564607
151ba72945
hex1220663f

304113215 has 16 divisors (see below), whose sum is σ = 418556928. Its totient is φ = 207791136.

The previous prime is 304113203. The next prime is 304113217. The reversal of 304113215 is 512311403.

It is not a de Polignac number, because 304113215 - 26 = 304113151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304113217) 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 15 ways as a sum of consecutive naturals, for example, 5447 + ... + 25256.

It is an arithmetic number, because the mean of its divisors is an integer number (26159808).

Almost surely, 2304113215 is an apocalyptic number.

304113215 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

304113215 is a deficient number, since it is larger than the sum of its proper divisors (114443713).

304113215 is a wasteful number, since it uses less digits than its factorization.

304113215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30998.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 304113215 is about 17438.8421347290. The cubic root of 304113215 is about 672.4785416240.

Adding to 304113215 its reverse (512311403), we get a palindrome (816424618).

The spelling of 304113215 in words is "three hundred four million, one hundred thirteen thousand, two hundred fifteen".

Divisors: 1 5 7 35 283 1415 1981 9905 30703 153515 214921 1074605 8688949 43444745 60822643 304113215