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315684056 = 231091632221
BaseRepresentation
bin10010110100001…
…111010011011000
3211000000102010002
4102310033103120
51121303342211
651154112132
710552161452
oct2264172330
9730012102
10315684056
11152217116
128987b648
135052c8cc
142dcd72d2
151caab03b
hex12d0f4d8

315684056 has 32 divisors (see below), whose sum is σ = 601273200. Its totient is φ = 155364480.

The previous prime is 315684001. The next prime is 315684119. The reversal of 315684056 is 650486513.

It is a super-2 number, since 2×3156840562 = 199312846425222272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141026 + ... + 143246.

Almost surely, 2315684056 is an apocalyptic number.

It is a pronic number, being equal to 17767×17768.

It is an amenable number.

315684056 is a deficient number, since it is larger than the sum of its proper divisors (285589144).

315684056 is a wasteful number, since it uses less digits than its factorization.

315684056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499 (or 2495 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 315684056 is about 17767.4999929647. The cubic root of 315684056 is about 680.9013824879.

The spelling of 315684056 in words is "three hundred fifteen million, six hundred eighty-four thousand, fifty-six".

Divisors: 1 2 4 8 109 163 218 326 436 652 872 1304 2221 4442 8884 17767 17768 35534 71068 142136 242089 362023 484178 724046 968356 1448092 1936712 2896184 39460507 78921014 157842028 315684056