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6864012 = 2232190667
BaseRepresentation
bin11010001011110010001100
3110220201122200
4122023302030
53224122022
6403041500
7112225461
oct32136214
913821580
106864012
113969041
122370290
13156435c
14ca9668
15908bac
hex68bc8c

6864012 has 18 divisors (see below), whose sum is σ = 17350788. Its totient is φ = 2287992.

The previous prime is 6863993. The next prime is 6864019. The reversal of 6864012 is 2104686.

6864012 is a `hidden beast` number, since 6 + 8 + 640 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×68640122 = 94229321472288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6864019) 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 5 ways as a sum of consecutive naturals, for example, 95298 + ... + 95369.

Almost surely, 26864012 is an apocalyptic number.

It is an amenable number.

6864012 is an abundant number, since it is smaller than the sum of its proper divisors (10486776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6864012 is a wasteful number, since it uses less digits than its factorization.

6864012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190677 (or 190672 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 6864012 is about 2619.9259531521. The cubic root of 6864012 is about 190.0462675873.

Adding to 6864012 its reverse (2104686), we get a palindrome (8968698).

The spelling of 6864012 in words is "six million, eight hundred sixty-four thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 190667 381334 572001 762668 1144002 1716003 2288004 3432006 6864012