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316049 = 317997
BaseRepresentation
bin1001101001010010001
3121001112112
41031022101
540103144
610435105
72454266
oct1151221
9531475
10316049
111a64a8
12132a95
13b0b16
148326d
156399e
hex4d291

316049 has 4 divisors (see below), whose sum is σ = 317364. Its totient is φ = 314736.

The previous prime is 316037. The next prime is 316051. The reversal of 316049 is 940613.

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 135424 + 180625 = 368^2 + 425^2 .

It is a cyclic number.

It is not a de Polignac number, because 316049 - 24 = 316033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316649) 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, 182 + ... + 815.

It is an arithmetic number, because the mean of its divisors is an integer number (79341).

2316049 is an apocalyptic number.

It is an amenable number.

316049 is a deficient number, since it is larger than the sum of its proper divisors (1315).

316049 is an equidigital number, since it uses as much as digits as its factorization.

316049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 316049 is about 562.1823547569. The cubic root of 316049 is about 68.1163664956.

It can be divided in two parts, 31604 and 9, that added together give a palindrome (31613).

The spelling of 316049 in words is "three hundred sixteen thousand, forty-nine".

Divisors: 1 317 997 316049