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304113131 = 7311401443
BaseRepresentation
bin10010001000000…
…110010111101011
3210012020112210022
4102020012113223
51110323110011
650102111055
710351630130
oct2210062753
9705215708
10304113131
11146733773
1285a1b48b
134b00acca
142c564587
151ba728db
hex122065eb

304113131 has 8 divisors (see below), whose sum is σ = 358769664. Its totient is φ = 252259560.

The previous prime is 304113097. The next prime is 304113137. The reversal of 304113131 is 131311403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-304113131 is a prime.

It is a super-2 number, since 2×3041131312 = 184969592893246322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304113137) 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, 700505 + ... + 700938.

It is an arithmetic number, because the mean of its divisors is an integer number (44846208).

Almost surely, 2304113131 is an apocalyptic number.

304113131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

304113131 is a deficient number, since it is larger than the sum of its proper divisors (54656533).

304113131 is a wasteful number, since it uses less digits than its factorization.

304113131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401481.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 304113131 is about 17438.8397263121. The cubic root of 304113131 is about 672.4784797082.

Adding to 304113131 its reverse (131311403), we get a palindrome (435424534).

The spelling of 304113131 in words is "three hundred four million, one hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 7 31 217 1401443 9810101 43444733 304113131