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304243030 = 25713334333
BaseRepresentation
bin10010001000100…
…110000101010110
3210012111010222101
4102020212011112
51110341234110
650104552314
710353010630
oct2210460526
9705433871
10304243030
11146812323
1285a8269a
134b055180
142c599a50
151ba9b13a
hex12226156

304243030 has 32 divisors (see below), whose sum is σ = 674017344. Its totient is φ = 96287616.

The previous prime is 304243013. The next prime is 304243063. The reversal of 304243030 is 30342403.

It is a junction number, because it is equal to n+sod(n) for n = 304242989 and 304243007.

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 15 ways as a sum of consecutive naturals, for example, 166257 + ... + 168076.

It is an arithmetic number, because the mean of its divisors is an integer number (21063042).

Almost surely, 2304243030 is an apocalyptic number.

304243030 is an abundant number, since it is smaller than the sum of its proper divisors (369774314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

304243030 is a wasteful number, since it uses less digits than its factorization.

304243030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334360.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 304243030 is about 17442.5637450462. The cubic root of 304243030 is about 672.5742136513.

Adding to 304243030 its reverse (30342403), we get a palindrome (334585433).

The spelling of 304243030 in words is "three hundred four million, two hundred forty-three thousand, thirty".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 455 910 334333 668666 1671665 2340331 3343330 4346329 4680662 8692658 11701655 21731645 23403310 30424303 43463290 60848606 152121515 304243030