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315322816712 = 231985332
BaseRepresentation
bin1001001011010101011…
…01000101100011001000
31010010220101111202201012
410211222231011203020
520131240120113322
6400505102143052
731531664501351
oct4455255054310
91103811452635
10315322816712
11111800567292
1251140b81a88
1323972503c67
1411394198d28
1583079dcae2
hex496ab458c8

315322816712 has 12 divisors (see below), whose sum is σ = 591233259345. Its totient is φ = 157660614224.

The previous prime is 315322816691. The next prime is 315322816727. The reversal of 315322816712 is 217618223513.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 309863675716 + 5459140996 = 556654^2 + 73886^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=397066.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315322816712.

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 2 ways as a sum of consecutive naturals, for example, 1488998 + ... + 1687530.

Almost surely, 2315322816712 is an apocalyptic number.

It is an amenable number.

315322816712 is a deficient number, since it is larger than the sum of its proper divisors (275910442633).

315322816712 is an frugal number, since it uses more digits than its factorization.

315322816712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397072 (or 198535 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The spelling of 315322816712 in words is "three hundred fifteen billion, three hundred twenty-two million, eight hundred sixteen thousand, seven hundred twelve".

Divisors: 1 2 4 8 198533 397066 794132 1588264 39415352089 78830704178 157661408356 315322816712