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6769 = 7967
BaseRepresentation
bin1101001110001
3100021201
41221301
5204034
651201
725510
oct15161
910251
106769
1150a4
123b01
133109
142677
152014
hex1a71

6769 has 4 divisors (see below), whose sum is σ = 7744. Its totient is φ = 5796.

The previous prime is 6763. The next prime is 6779. The reversal of 6769 is 9676.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6769 - 23 = 6761 is a prime.

It is a super-2 number, since 2×67692 = 91638722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477 + ... + 490.

It is an arithmetic number, because the mean of its divisors is an integer number (1936).

6769 is the 48-th hex number.

It is an amenable number.

6769 is a deficient number, since it is larger than the sum of its proper divisors (975).

6769 is an equidigital number, since it uses as much as digits as its factorization.

6769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974.

The product of its digits is 2268, while the sum is 28.

The square root of 6769 is about 82.2739326883. The cubic root of 6769 is about 18.9165313589.

It can be divided in two parts, 676 and 9, that multiplied together give a square (6084 = 782).

The spelling of 6769 in words is "six thousand, seven hundred sixty-nine".

Divisors: 1 7 967 6769