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315306884 = 22277284573
BaseRepresentation
bin10010110010110…
…011001110000100
3210222022020201202
4102302303032010
51121204310014
651142042032
710546031024
oct2262631604
9728266652
10315306884
11151a89802
1289719318
135042a029
142dc39a84
151ca343de
hex12cb3384

315306884 has 12 divisors (see below), whose sum is σ = 553781004. Its totient is φ = 157083744.

The previous prime is 315306883. The next prime is 315306907. The reversal of 315306884 is 488603513.

It can be written as a sum of positive squares in 2 ways, for example, as 211062784 + 104244100 = 14528^2 + 10210^2 .

It is not an unprimeable number, because it can be changed into a prime (315306883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141179 + ... + 143394.

It is an arithmetic number, because the mean of its divisors is an integer number (46148417).

Almost surely, 2315306884 is an apocalyptic number.

It is an amenable number.

315306884 is a deficient number, since it is larger than the sum of its proper divisors (238474120).

315306884 is a wasteful number, since it uses less digits than its factorization.

315306884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284854 (or 284852 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 315306884 is about 17756.8827219194. The cubic root of 315306884 is about 680.6300993501.

The spelling of 315306884 in words is "three hundred fifteen million, three hundred six thousand, eight hundred eighty-four".

Divisors: 1 2 4 277 554 1108 284573 569146 1138292 78826721 157653442 315306884