Search a number
-
+
6811241 = 17773833
BaseRepresentation
bin11001111110111001101001
3110211001021012
4121332321221
53220424431
6401553305
7111615563
oct31767151
913731235
106811241
113932428
122345835
131546328
14c94333
158e822b
hex67ee69

6811241 has 4 divisors (see below), whose sum is σ = 6816852. Its totient is φ = 6805632.

The previous prime is 6811223. The next prime is 6811247. The reversal of 6811241 is 1421186.

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 2418025 + 4393216 = 1555^2 + 2096^2 .

It is a cyclic number.

It is not a de Polignac number, because 6811241 - 214 = 6794857 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (6811247) 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, 140 + ... + 3693.

It is an arithmetic number, because the mean of its divisors is an integer number (1704213).

Almost surely, 26811241 is an apocalyptic number.

It is an amenable number.

6811241 is a deficient number, since it is larger than the sum of its proper divisors (5611).

6811241 is a wasteful number, since it uses less digits than its factorization.

6811241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610.

The product of its digits is 384, while the sum is 23.

The square root of 6811241 is about 2609.8354354250. The cubic root of 6811241 is about 189.5579844974.

The spelling of 6811241 in words is "six million, eight hundred eleven thousand, two hundred forty-one".

Divisors: 1 1777 3833 6811241