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318618348 = 22326551529
BaseRepresentation
bin10010111111011…
…011101011101100
3211012112111012120
4102333123223230
51123031241343
651341032540
710616132316
oct2277335354
9735474176
10318618348
11153940754
128a855750
1351019389
143045c7b6
151ce8a683
hex12fdbaec

318618348 has 12 divisors (see below), whose sum is σ = 743442840. Its totient is φ = 106206112.

The previous prime is 318618343. The next prime is 318618361. The reversal of 318618348 is 843816813.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (318618343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13275753 + ... + 13275776.

It is an arithmetic number, because the mean of its divisors is an integer number (61953570).

Almost surely, 2318618348 is an apocalyptic number.

It is an amenable number.

318618348 is an abundant number, since it is smaller than the sum of its proper divisors (424824492).

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

318618348 is a wasteful number, since it uses less digits than its factorization.

318618348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26551536 (or 26551534 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 318618348 is about 17849.8836971001. The cubic root of 318618348 is about 683.0045452716.

The spelling of 318618348 in words is "three hundred eighteen million, six hundred eighteen thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 26551529 53103058 79654587 106206116 159309174 318618348