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304131441 = 3915711071
BaseRepresentation
bin10010001000001…
…010110101110001
3210012021110220110
4102020022311301
51110324201231
650102331533
710352034405
oct2210126561
9705243813
10304131441
111467464a9
1285a29ba9
134b016443
142c56b105
151ba78046
hex1220ad71

304131441 has 8 divisors (see below), whose sum is σ = 405589504. Its totient is φ = 202713840.

The previous prime is 304131427. The next prime is 304131449. The reversal of 304131441 is 144131403.

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

It is not a de Polignac number, because 304131441 - 25 = 304131409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (304131449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21936 + ... + 33006.

It is an arithmetic number, because the mean of its divisors is an integer number (50698688).

Almost surely, 2304131441 is an apocalyptic number.

It is an amenable number.

304131441 is a deficient number, since it is larger than the sum of its proper divisors (101458063).

304131441 is a wasteful number, since it uses less digits than its factorization.

304131441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20231.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 304131441 is about 17439.3646959974. The cubic root of 304131441 is about 672.4919756002.

Adding to 304131441 its reverse (144131403), we get a palindrome (448262844).

The spelling of 304131441 in words is "three hundred four million, one hundred thirty-one thousand, four hundred forty-one".

Divisors: 1 3 9157 11071 27471 33213 101377147 304131441