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304304628 = 223231102553
BaseRepresentation
bin10010001000110…
…101000111110100
3210012121021110210
4102020311013310
51110400222003
650110145420
710353355335
oct2210650764
9705537423
10304304628
11146854631
1285ab2270
134b077214
142c5b428c
151baae503
hex122351f4

304304628 has 24 divisors (see below), whose sum is σ = 740916288. Its totient is φ = 97024576.

The previous prime is 304304557. The next prime is 304304639. The reversal of 304304628 is 826403403.

It is a junction number, because it is equal to n+sod(n) for n = 304304595 and 304304604.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 551001 + ... + 551552.

It is an arithmetic number, because the mean of its divisors is an integer number (30871512).

Almost surely, 2304304628 is an apocalyptic number.

It is an amenable number.

304304628 is an abundant number, since it is smaller than the sum of its proper divisors (436611660).

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

304304628 is a wasteful number, since it uses less digits than its factorization.

304304628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102583 (or 1102581 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 304304628 is about 17444.3293938174. The cubic root of 304304628 is about 672.6196010847.

The spelling of 304304628 in words is "three hundred four million, three hundred four thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 1102553 2205106 3307659 4410212 6615318 13230636 25358719 50717438 76076157 101434876 152152314 304304628