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6768669 = 317237211
BaseRepresentation
bin11001110100100000011101
3110201212212110
4121310200131
53213044134
6401024233
7111350505
oct31644035
913655773
106768669
113903446
122325079
13152cb3b
14c82a05
158da7e9
hex67481d

6768669 has 24 divisors (see below), whose sum is σ = 9892768. Its totient is φ = 4112640.

The previous prime is 6768667. The next prime is 6768679. The reversal of 6768669 is 9668676.

It is a happy number.

It is not a de Polignac number, because 6768669 - 21 = 6768667 is a prime.

It is a super-2 number, since 2×67686692 = 91629760063122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6768661) 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 23 ways as a sum of consecutive naturals, for example, 31974 + ... + 32184.

Almost surely, 26768669 is an apocalyptic number.

It is an amenable number.

6768669 is a deficient number, since it is larger than the sum of its proper divisors (3124099).

6768669 is a wasteful number, since it uses less digits than its factorization.

6768669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 268 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 6768669 is about 2601.6665812513. Note that the first 3 decimals coincide. The cubic root of 6768669 is about 189.1622301827.

The spelling of 6768669 in words is "six million, seven hundred sixty-eight thousand, six hundred sixty-nine".

Divisors: 1 3 17 37 51 111 211 289 629 633 867 1887 3587 7807 10693 10761 23421 32079 60979 132719 182937 398157 2256223 6768669