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30304235 = 513235863
BaseRepresentation
bin111001110011…
…0011111101011
32010000121121002
41303212133223
530224213420
63001305215
7515403353
oct163463753
963017532
1030304235
1116119025
12a19520b
136380600
14404bb63
1529d9075
hex1ce67eb

30304235 has 12 divisors (see below), whose sum is σ = 39378672. Its totient is φ = 22377888.

The previous prime is 30304231. The next prime is 30304243. The reversal of 30304235 is 53240303.

It is not a de Polignac number, because 30304235 - 22 = 30304231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30304231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17087 + ... + 18776.

It is an arithmetic number, because the mean of its divisors is an integer number (3281556).

Almost surely, 230304235 is an apocalyptic number.

30304235 is a deficient number, since it is larger than the sum of its proper divisors (9074437).

30304235 is a wasteful number, since it uses less digits than its factorization.

30304235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35894 (or 35881 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 30304235 is about 5504.9282465805. The cubic root of 30304235 is about 311.7700852456.

Adding to 30304235 its reverse (53240303), we get a palindrome (83544538).

The spelling of 30304235 in words is "thirty million, three hundred four thousand, two hundred thirty-five".

Divisors: 1 5 13 65 169 845 35863 179315 466219 2331095 6060847 30304235