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315116263 = 71110140519
BaseRepresentation
bin10010110010000…
…100101011100111
3210221221120020201
4102302010223213
51121132210023
651134011331
710544305210
oct2262045347
9727846221
10315116263
11151969570
1289646b47
1350391337
142dbca407
151c9e7bad
hex12c84ae7

315116263 has 16 divisors (see below), whose sum is σ = 396771840. Its totient is φ = 243108000.

The previous prime is 315116239. The next prime is 315116281. The reversal of 315116263 is 362611513.

It is a cyclic number.

It is not a de Polignac number, because 315116263 - 221 = 313019111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315116203) 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, 12483 + ... + 28036.

It is an arithmetic number, because the mean of its divisors is an integer number (24798240).

Almost surely, 2315116263 is an apocalyptic number.

315116263 is a deficient number, since it is larger than the sum of its proper divisors (81655577).

315116263 is a wasteful number, since it uses less digits than its factorization.

315116263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40638.

The product of its digits is 3240, while the sum is 28.

The square root of 315116263 is about 17751.5143861024. The cubic root of 315116263 is about 680.4929117919.

Adding to 315116263 its reverse (362611513), we get a palindrome (677727776).

The spelling of 315116263 in words is "three hundred fifteen million, one hundred sixteen thousand, two hundred sixty-three".

Divisors: 1 7 11 77 101 707 1111 7777 40519 283633 445709 3119963 4092419 28646933 45016609 315116263