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304286949 = 343756629
BaseRepresentation
bin10010001000110…
…000110011100101
3210012120101020000
4102020300303211
51110344140244
650105531513
710353252651
oct2210606345
9705511200
10304286949
1114684231a
1285aa3b99
134b06c165
142c5aba61
151baa9169
hex12230ce5

304286949 has 10 divisors (see below), whose sum is σ = 454552230. Its totient is φ = 202857912.

The previous prime is 304286929. The next prime is 304286981. The reversal of 304286949 is 949682403.

It can be written as a sum of positive squares in only one way, i.e., 182736324 + 121550625 = 13518^2 + 11025^2 .

It is not a de Polignac number, because 304286949 - 28 = 304286693 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304286909) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1878234 + ... + 1878395.

It is an arithmetic number, because the mean of its divisors is an integer number (45455223).

Almost surely, 2304286949 is an apocalyptic number.

It is an amenable number.

304286949 is a deficient number, since it is larger than the sum of its proper divisors (150265281).

304286949 is an equidigital number, since it uses as much as digits as its factorization.

304286949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756641 (or 3756632 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 304286949 is about 17443.8226601855. The cubic root of 304286949 is about 672.6065752424.

The spelling of 304286949 in words is "three hundred four million, two hundred eighty-six thousand, nine hundred forty-nine".

Divisors: 1 3 9 27 81 3756629 11269887 33809661 101428983 304286949