Search a number
-
+
769089 = 3256363
BaseRepresentation
bin10111011110001000001
31110001222210
42323301001
5144102324
624252333
76352146
oct2736101
91401883
10769089
11485912
123110a9
1320c0a9
141603cd
15102d29
hexbbc41

769089 has 4 divisors (see below), whose sum is σ = 1025456. Its totient is φ = 512724.

The previous prime is 769081. The next prime is 769091. The reversal of 769089 is 980967.

769089 is digitally balanced in base 2, 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.

It is not a de Polignac number, because 769089 - 23 = 769081 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

769089 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (769081) 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, 128179 + ... + 128184.

It is an arithmetic number, because the mean of its divisors is an integer number (256364).

2769089 is an apocalyptic number.

It is an amenable number.

769089 is a deficient number, since it is larger than the sum of its proper divisors (256367).

769089 is a wasteful number, since it uses less digits than its factorization.

769089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256366.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 769089 is about 876.9771946864. The cubic root of 769089 is about 91.6204034690.

It can be divided in two parts, 7 and 69089, that added together give a palindrome (69096).

The spelling of 769089 in words is "seven hundred sixty-nine thousand, eighty-nine".

Divisors: 1 3 256363 769089