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304904741 = 1741617709
BaseRepresentation
bin10010001011000…
…111101000100101
3210020201202200012
4102023013220211
51111023422431
650131100005
710361435051
oct2213075045
9706652605
10304904741
11147124499
1286141605
134b22740b
142c6ccc61
151bb7c22b
hex122c7a25

304904741 has 16 divisors (see below), whose sum is σ = 331717680. Its totient is φ = 279121920.

The previous prime is 304904737. The next prime is 304904771. The reversal of 304904741 is 147409403.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 110859841 + 194044900 = 10529^2 + 13930^2 .

It is a cyclic number.

It is not a de Polignac number, because 304904741 - 22 = 304904737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 304904698 and 304904707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304904771) 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 15 ways as a sum of consecutive naturals, for example, 429695 + ... + 430403.

It is an arithmetic number, because the mean of its divisors is an integer number (20732355).

Almost surely, 2304904741 is an apocalyptic number.

It is an amenable number.

304904741 is a deficient number, since it is larger than the sum of its proper divisors (26812939).

304904741 is a wasteful number, since it uses less digits than its factorization.

304904741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 304904741 is about 17461.5217263559. The cubic root of 304904741 is about 673.0614639177.

The spelling of 304904741 in words is "three hundred four million, nine hundred four thousand, seven hundred forty-one".

Divisors: 1 17 41 617 697 709 10489 12053 25297 29069 430049 437453 494173 7436701 17935573 304904741