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304383940 = 22572174171
BaseRepresentation
bin10010001001001…
…000011111000100
3210012202022021021
4102021020133010
51110410241230
650112000524
710354135510
oct2211103704
9705668237
10304383940
111468a9183
1285b30144
134b0a4353
142c5d5140
151bac7c7a
hex122487c4

304383940 has 24 divisors (see below), whose sum is σ = 730521792. Its totient is φ = 104360160.

The previous prime is 304383931. The next prime is 304383949. The reversal of 304383940 is 49383403.

It is an interprime number because it is at equal distance from previous prime (304383931) and next prime (304383949).

It is a junction number, because it is equal to n+sod(n) for n = 304383896 and 304383905.

It is not an unprimeable number, because it can be changed into a prime (304383949) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1086946 + ... + 1087225.

It is an arithmetic number, because the mean of its divisors is an integer number (30438408).

Almost surely, 2304383940 is an apocalyptic number.

It is an amenable number.

304383940 is an abundant number, since it is smaller than the sum of its proper divisors (426137852).

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

304383940 is a wasteful number, since it uses less digits than its factorization.

304383940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174187 (or 2174185 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 304383940 is about 17446.6025345911. The cubic root of 304383940 is about 672.6780317568.

The spelling of 304383940 in words is "three hundred four million, three hundred eighty-three thousand, nine hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 2174171 4348342 8696684 10870855 15219197 21741710 30438394 43483420 60876788 76095985 152191970 304383940