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6768533 = 17398149
BaseRepresentation
bin11001110100011110010101
3110201212200102
4121310132111
53213043113
6401023445
7111350222
oct31643625
913655612
106768533
113903332
122324b85
13152ca65
14c82949
158da758
hex674795

6768533 has 4 divisors (see below), whose sum is σ = 7166700. Its totient is φ = 6370368.

The previous prime is 6768523. The next prime is 6768547. The reversal of 6768533 is 3358676.

6768533 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3467044 + 3301489 = 1862^2 + 1817^2 .

It is a cyclic number.

It is not a de Polignac number, because 6768533 - 26 = 6768469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6768523) 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 3 ways as a sum of consecutive naturals, for example, 199058 + ... + 199091.

It is an arithmetic number, because the mean of its divisors is an integer number (1791675).

Almost surely, 26768533 is an apocalyptic number.

It is an amenable number.

6768533 is a deficient number, since it is larger than the sum of its proper divisors (398167).

6768533 is a wasteful number, since it uses less digits than its factorization.

6768533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398166.

The product of its digits is 90720, while the sum is 38.

The square root of 6768533 is about 2601.6404440276. The cubic root of 6768533 is about 189.1609632553.

The spelling of 6768533 in words is "six million, seven hundred sixty-eight thousand, five hundred thirty-three".

Divisors: 1 17 398149 6768533