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304041131 = 734164947
BaseRepresentation
bin10010000111110…
…100110010101011
3210012002220000122
4102013310302223
51110313304011
650100353455
710351210202
oct2207646253
9705086018
10304041131
11146694669
12859a588b
134acb42c4
142c546239
151ba5b3db
hex121f4cab

304041131 has 4 divisors (see below), whose sum is σ = 308206152. Its totient is φ = 299876112.

The previous prime is 304041113. The next prime is 304041151. The reversal of 304041131 is 131140403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131140403 = 199658997.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-304041131 is a prime.

It is a super-2 number, since 2×3040411312 = 184882018679518322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304041151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2082401 + ... + 2082546.

It is an arithmetic number, because the mean of its divisors is an integer number (77051538).

Almost surely, 2304041131 is an apocalyptic number.

304041131 is a deficient number, since it is larger than the sum of its proper divisors (4165021).

304041131 is an equidigital number, since it uses as much as digits as its factorization.

304041131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4165020.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 304041131 is about 17436.7752465873. The cubic root of 304041131 is about 672.4254048630.

Adding to 304041131 its reverse (131140403), we get a palindrome (435181534).

The spelling of 304041131 in words is "three hundred four million, forty-one thousand, one hundred thirty-one".

Divisors: 1 73 4164947 304041131