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6812023 = 30722189
BaseRepresentation
bin11001111111000101110111
3110211002100011
4121333011313
53220441043
6402001051
7111621061
oct31770567
913732304
106812023
113932a79
122346187
1315467aa
14c94731
158e859d
hex67f177

6812023 has 4 divisors (see below), whose sum is σ = 6834520. Its totient is φ = 6789528.

The previous prime is 6812021. The next prime is 6812077. The reversal of 6812023 is 3202186.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6812023 - 21 = 6812021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6811985 and 6812003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6812021) 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, 10788 + ... + 11401.

It is an arithmetic number, because the mean of its divisors is an integer number (1708630).

Almost surely, 26812023 is an apocalyptic number.

6812023 is a deficient number, since it is larger than the sum of its proper divisors (22497).

6812023 is a wasteful number, since it uses less digits than its factorization.

6812023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22496.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 6812023 is about 2609.9852490005. The cubic root of 6812023 is about 189.5652386170.

It can be divided in two parts, 681 and 2023, that added together give a square (2704 = 522).

The spelling of 6812023 in words is "six million, eight hundred twelve thousand, twenty-three".

Divisors: 1 307 22189 6812023