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304040318 = 21971112691
BaseRepresentation
bin10010000111110…
…100100101111110
3210012002211220112
4102013310211332
51110313242233
650100350022
710351204631
oct2207644576
9705084815
10304040318
11146693a9a
12859a5312
134acb3b1a
142c545c18
151ba5b048
hex121f497e

304040318 has 16 divisors (see below), whose sum is σ = 486829440. Its totient is φ = 141989400.

The previous prime is 304040293. The next prime is 304040327. The reversal of 304040318 is 813040403.

It is a super-2 number, since 2×3040403182 = 184881029939082248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 304040293 and 304040302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53648 + ... + 59043.

It is an arithmetic number, because the mean of its divisors is an integer number (30426840).

Almost surely, 2304040318 is an apocalyptic number.

304040318 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

304040318 is a deficient number, since it is larger than the sum of its proper divisors (182789122).

304040318 is a wasteful number, since it uses less digits than its factorization.

304040318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112783.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 304040318 is about 17436.7519337748. The cubic root of 304040318 is about 672.4248055117.

The spelling of 304040318 in words is "three hundred four million, forty thousand, three hundred eighteen".

Divisors: 1 2 19 38 71 142 1349 2698 112691 225382 2141129 4282258 8001061 16002122 152020159 304040318