Search a number
-
+
6768869 = 22073067
BaseRepresentation
bin11001110100100011100101
3110201220010212
4121310203211
53213100434
6401025205
7111351212
oct31644345
913656125
106768869
113903608
122325205
13152cc63
14c82b09
158da8ce
hex6748e5

6768869 has 4 divisors (see below), whose sum is σ = 6774144. Its totient is φ = 6763596.

The previous prime is 6768859. The next prime is 6768887. The reversal of 6768869 is 9688676.

6768869 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6768869 - 212 = 6764773 is a prime.

It is a super-2 number, since 2×67688692 = 91635175078322, 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 (6768829) 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, 674 + ... + 3740.

It is an arithmetic number, because the mean of its divisors is an integer number (1693536).

Almost surely, 26768869 is an apocalyptic number.

It is an amenable number.

6768869 is a deficient number, since it is larger than the sum of its proper divisors (5275).

6768869 is a wasteful number, since it uses less digits than its factorization.

6768869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274.

The product of its digits is 870912, while the sum is 50.

The square root of 6768869 is about 2601.7050178681. The cubic root of 6768869 is about 189.1640932803.

The spelling of 6768869 in words is "six million, seven hundred sixty-eight thousand, eight hundred sixty-nine".

Divisors: 1 2207 3067 6768869