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304135205 = 511137181223
BaseRepresentation
bin10010001000001…
…011110000100101
3210012021200001212
4102020023300211
51110324311310
650102401205
710352051363
oct2210136045
9705250055
10304135205
11146749310
1285a30205
134b01807a
142c56c633
151ba79205
hex1220bc25

304135205 has 32 divisors (see below), whose sum is σ = 405070848. Its totient is φ = 217382400.

The previous prime is 304135121. The next prime is 304135217. The reversal of 304135205 is 502531403.

It is not a de Polignac number, because 304135205 - 28 = 304134949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1363724 + ... + 1363946.

It is an arithmetic number, because the mean of its divisors is an integer number (12658464).

Almost surely, 2304135205 is an apocalyptic number.

It is an amenable number.

304135205 is a deficient number, since it is larger than the sum of its proper divisors (100935643).

304135205 is a wasteful number, since it uses less digits than its factorization.

304135205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 304135205 is about 17439.4726124387. The cubic root of 304135205 is about 672.4947498934.

Adding to 304135205 its reverse (502531403), we get a palindrome (806666608).

The spelling of 304135205 in words is "three hundred four million, one hundred thirty-five thousand, two hundred five".

Divisors: 1 5 11 55 137 181 223 685 905 1115 1507 1991 2453 7535 9955 12265 24797 30551 40363 123985 152755 201815 272767 336061 443993 1363835 1680305 2219965 5529731 27648655 60827041 304135205