Search a number
-
+
318725394 = 231310738189
BaseRepresentation
bin10010111111110…
…101110100010010
3211012201221001020
4102333311310102
51123043203034
651343220310
710620056361
oct2277656422
9735657036
10318725394
11153a04119
128a8a7696
1351056010
14304897d8
151ceac249
hex12ff5d12

318725394 has 32 divisors (see below), whose sum is σ = 692919360. Its totient is φ = 97150272.

The previous prime is 318725387. The next prime is 318725419. The reversal of 318725394 is 493527813.

318725394 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10749 + ... + 27440.

It is an arithmetic number, because the mean of its divisors is an integer number (21653730).

Almost surely, 2318725394 is an apocalyptic number.

318725394 is an abundant number, since it is smaller than the sum of its proper divisors (374193966).

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

318725394 is a wasteful number, since it uses less digits than its factorization.

318725394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38314.

The product of its digits is 181440, while the sum is 42.

The square root of 318725394 is about 17852.8819522227. The cubic root of 318725394 is about 683.0810262388.

The spelling of 318725394 in words is "three hundred eighteen million, seven hundred twenty-five thousand, three hundred ninety-four".

Divisors: 1 2 3 6 13 26 39 78 107 214 321 642 1391 2782 4173 8346 38189 76378 114567 229134 496457 992914 1489371 2978742 4086223 8172446 12258669 24517338 53120899 106241798 159362697 318725394