Search a number
-
+
6830681 = 1113371291
BaseRepresentation
bin11010000011101001011001
3110212000221012
4122003221121
53222040211
6402223305
7112026344
oct32035131
913760835
106830681
113945aa0
122354b35
131552130
14c9b45b
158edd8b
hex683a59

6830681 has 16 divisors (see below), whose sum is σ = 8248128. Its totient is φ = 5572800.

The previous prime is 6830669. The next prime is 6830699. The reversal of 6830681 is 1860386.

6830681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6830681 is a prime.

It is a super-2 number, since 2×68306812 = 93316405847522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6830611) 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 15 ways as a sum of consecutive naturals, for example, 4646 + ... + 5936.

It is an arithmetic number, because the mean of its divisors is an integer number (515508).

Almost surely, 26830681 is an apocalyptic number.

It is an amenable number.

6830681 is a deficient number, since it is larger than the sum of its proper divisors (1417447).

6830681 is a wasteful number, since it uses less digits than its factorization.

6830681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 6830681 is about 2613.5571545310. The cubic root of 6830681 is about 189.7381526913.

The spelling of 6830681 in words is "six million, eight hundred thirty thousand, six hundred eighty-one".

Divisors: 1 11 13 37 143 407 481 1291 5291 14201 16783 47767 184613 525437 620971 6830681