Search a number
-
+
6814081 = 431071481
BaseRepresentation
bin11001111111100110000001
3110211012011101
4121333212001
53221022311
6402014401
7111630061
oct31774601
913735141
106814081
11393457a
122347401
131547701
14c953a1
158e8ec1
hex67f981

6814081 has 8 divisors (see below), whose sum is σ = 7042464. Its totient is φ = 6588960.

The previous prime is 6814069. The next prime is 6814091. The reversal of 6814081 is 1804186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6814081 is a prime.

It is a super-2 number, since 2×68140812 = 92863399749122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6814001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3861 + ... + 5341.

It is an arithmetic number, because the mean of its divisors is an integer number (880308).

Almost surely, 26814081 is an apocalyptic number.

It is an amenable number.

6814081 is a deficient number, since it is larger than the sum of its proper divisors (228383).

6814081 is a wasteful number, since it uses less digits than its factorization.

6814081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 6814081 is about 2610.3794743294. The cubic root of 6814081 is about 189.5843267294.

The spelling of 6814081 in words is "six million, eight hundred fourteen thousand, eighty-one".

Divisors: 1 43 107 1481 4601 63683 158467 6814081