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304241331 = 3101413777
BaseRepresentation
bin10010001000100…
…101101010110011
3210012111001122110
4102020211222303
51110341210311
650104540403
710353002652
oct2210455263
9705431573
10304241331
11146811019
1285a81703
134b054474
142c599199
151ba9a8a6
hex12225ab3

304241331 has 4 divisors (see below), whose sum is σ = 405655112. Its totient is φ = 202827552.

The previous prime is 304241323. The next prime is 304241363. The reversal of 304241331 is 133142403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133142403 = 344380801.

It is not a de Polignac number, because 304241331 - 23 = 304241323 is a prime.

It is a super-2 number, since 2×3042413312 = 185125574977303122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304241298 and 304241307.

It is not an unprimeable number, because it can be changed into a prime (304241731) 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 3 ways as a sum of consecutive naturals, for example, 50706886 + ... + 50706891.

It is an arithmetic number, because the mean of its divisors is an integer number (101413778).

Almost surely, 2304241331 is an apocalyptic number.

304241331 is a deficient number, since it is larger than the sum of its proper divisors (101413781).

304241331 is a wasteful number, since it uses less digits than its factorization.

304241331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101413780.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 304241331 is about 17442.5150422753. The cubic root of 304241331 is about 672.5729616854.

Adding to 304241331 its reverse (133142403), we get a palindrome (437383734).

The spelling of 304241331 in words is "three hundred four million, two hundred forty-one thousand, three hundred thirty-one".

Divisors: 1 3 101413777 304241331