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318245352239 = 19591213234043
BaseRepresentation
bin1001010000110001110…
…01101011001100101111
31010102110001202221202202
410220120321223030233
520203231302232424
6402111102212115
731664262601163
oct4503071531457
91112401687682
10318245352239
11112a70228501
125181788403b
1324019b35219
1411590398ca3
15842937e2ae
hex4a18e6b32f

318245352239 has 16 divisors (see below), whose sum is σ = 340955299200. Its totient is φ = 296139895776.

The previous prime is 318245352233. The next prime is 318245352253. The reversal of 318245352239 is 932253542813.

It is a de Polignac number, because none of the positive numbers 2k-318245352239 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 318245352193 and 318245352202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318245352233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1242752 + ... + 1476794.

It is an arithmetic number, because the mean of its divisors is an integer number (21309706200).

Almost surely, 2318245352239 is an apocalyptic number.

318245352239 is a deficient number, since it is larger than the sum of its proper divisors (22709946961).

318245352239 is a wasteful number, since it uses less digits than its factorization.

318245352239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235334.

The product of its digits is 1555200, while the sum is 47.

The spelling of 318245352239 in words is "three hundred eighteen billion, two hundred forty-five million, three hundred fifty-two thousand, two hundred thirty-nine".

Divisors: 1 19 59 1121 1213 23047 71567 234043 1359773 4446817 13808537 262362203 283894159 5393989021 16749755381 318245352239