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4161071 = 20172063
BaseRepresentation
bin1111110111111000101111
321211101220202
433313320233
52031123241
6225104115
750240255
oct17677057
97741822
104161071
112392302
12148803b
13b28c95
147a45d5
15572d9b
hex3f7e2f

4161071 has 4 divisors (see below), whose sum is σ = 4165152. Its totient is φ = 4156992.

The previous prime is 4161061. The next prime is 4161077. The reversal of 4161071 is 1701614.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1701614 = 2850807.

It is a cyclic number.

It is not a de Polignac number, because 4161071 - 210 = 4160047 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 (4161077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 986 + ... + 3048.

It is an arithmetic number, because the mean of its divisors is an integer number (1041288).

Almost surely, 24161071 is an apocalyptic number.

4161071 is a deficient number, since it is larger than the sum of its proper divisors (4081).

4161071 is a wasteful number, since it uses less digits than its factorization.

4161071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 4161071 is about 2039.8703390167. The cubic root of 4161071 is about 160.8428310737.

Adding to 4161071 its reverse (1701614), we get a palindrome (5862685).

The spelling of 4161071 in words is "four million, one hundred sixty-one thousand, seventy-one".

Divisors: 1 2017 2063 4161071