Search a number
-
+
3071 = 3783
BaseRepresentation
bin101111111111
311012202
4233333
544241
622115
711645
oct5777
94182
103071
112342
12193b
131523
141195
15d9b
hexbff

3071 has 4 divisors (see below), whose sum is σ = 3192. Its totient is φ = 2952.

The previous prime is 3067. The next prime is 3079. The reversal of 3071 is 1703.

Adding to 3071 its reverse (1703), we get a palindrome (4774).

It can be divided in two parts, 30 and 71, that added together give a palindrome (101).

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: 1703 = 13131.

It is a cyclic number.

It is not a de Polignac number, because 3071 - 22 = 3067 is a prime.

It is a Duffinian number.

It is a plaindrome in base 4, base 8 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5 + ... + 78.

It is an arithmetic number, because the mean of its divisors is an integer number (798).

23071 is an apocalyptic number.

3071 is a deficient number, since it is larger than the sum of its proper divisors (121).

3071 is an equidigital number, since it uses as much as digits as its factorization.

3071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120.

The product of its (nonzero) digits is 21, while the sum is 11.

The square root of 3071 is about 55.4166040100. The cubic root of 3071 is about 14.5353872098.

The spelling of 3071 in words is "three thousand, seventy-one", and thus it is an iban number.

Divisors: 1 37 83 3071