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304131442 = 2198003459
BaseRepresentation
bin10010001000001…
…010110101110010
3210012021110220111
4102020022311302
51110324201232
650102331534
710352034406
oct2210126562
9705243814
10304131442
111467464aa
1285a29baa
134b016444
142c56b106
151ba78047
hex1220ad72

304131442 has 8 divisors (see below), whose sum is σ = 480207600. Its totient is φ = 144062244.

The previous prime is 304131427. The next prime is 304131449. The reversal of 304131442 is 244131403.

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

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 3 ways as a sum of consecutive naturals, for example, 4001692 + ... + 4001767.

It is an arithmetic number, because the mean of its divisors is an integer number (60025950).

Almost surely, 2304131442 is an apocalyptic number.

304131442 is a deficient number, since it is larger than the sum of its proper divisors (176076158).

304131442 is a wasteful number, since it uses less digits than its factorization.

304131442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8003480.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 304131442 is about 17439.3647246682. The cubic root of 304131442 is about 672.4919763372.

Adding to 304131442 its reverse (244131403), we get a palindrome (548262845).

The spelling of 304131442 in words is "three hundred four million, one hundred thirty-one thousand, four hundred forty-two".

Divisors: 1 2 19 38 8003459 16006918 152065721 304131442