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316161 = 3235129
BaseRepresentation
bin1001101001100000001
3121001200200
41031030001
540104121
610435413
72454516
oct1151401
9531620
10316161
111a659a
12132b69
13b0ba1
148330d
1563a26
hex4d301

316161 has 6 divisors (see below), whose sum is σ = 456690. Its totient is φ = 210768.

The previous prime is 316153. The next prime is 316177. The reversal of 316161 is 161613.

It can be written as a sum of positive squares in only one way, i.e., 197136 + 119025 = 444^2 + 345^2 .

It is not a de Polignac number, because 316161 - 23 = 316153 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17556 + ... + 17573.

It is an arithmetic number, because the mean of its divisors is an integer number (76115).

2316161 is an apocalyptic number.

It is an amenable number.

316161 is a deficient number, since it is larger than the sum of its proper divisors (140529).

316161 is a wasteful number, since it uses less digits than its factorization.

316161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35135 (or 35132 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 316161 is about 562.2819577401. The cubic root of 316161 is about 68.1244118009.

Adding to 316161 its reverse (161613), we get a palindrome (477774).

The spelling of 316161 in words is "three hundred sixteen thousand, one hundred sixty-one".

Divisors: 1 3 9 35129 105387 316161