Search a number
-
+
317611361 = 1075329537
BaseRepresentation
bin10010111011100…
…101110101100001
3211010122022212202
4102323211311201
51122302030421
651303302545
710604436434
oct2273456541
9733568782
10317611361
11153313131
128a44aa55
1350a55c22
143027981b
151cd3c10b
hex12ee5d61

317611361 has 4 divisors (see below), whose sum is σ = 317651652. Its totient is φ = 317571072.

The previous prime is 317611339. The next prime is 317611403. The reversal of 317611361 is 163116713.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 128686336 + 188925025 = 11344^2 + 13745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-317611361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317611331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4016 + ... + 25521.

It is an arithmetic number, because the mean of its divisors is an integer number (79412913).

Almost surely, 2317611361 is an apocalyptic number.

It is an amenable number.

317611361 is a deficient number, since it is larger than the sum of its proper divisors (40291).

317611361 is a wasteful number, since it uses less digits than its factorization.

317611361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40290.

The product of its digits is 2268, while the sum is 29.

The square root of 317611361 is about 17821.6542722610. The cubic root of 317611361 is about 682.2842451116.

The spelling of 317611361 in words is "three hundred seventeen million, six hundred eleven thousand, three hundred sixty-one".

Divisors: 1 10753 29537 317611361