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679069 = 1275347
BaseRepresentation
bin10100101110010011101
31021111111201
42211302131
5133212234
622315501
75525536
oct2456235
91244451
10679069
11424216
12288b91
131aa121
1413968d
15d6314
hexa5c9d

679069 has 4 divisors (see below), whose sum is σ = 684544. Its totient is φ = 673596.

The previous prime is 679067. The next prime is 679087. The reversal of 679069 is 960976.

679069 is nontrivially palindromic in base 3.

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 a cyclic number.

It is not a de Polignac number, because 679069 - 21 = 679067 is a prime.

It is a super-4 number, since 4×6790694 (a number of 24 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679067) 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 3 ways as a sum of consecutive naturals, for example, 2547 + ... + 2800.

It is an arithmetic number, because the mean of its divisors is an integer number (171136).

2679069 is an apocalyptic number.

It is an amenable number.

679069 is a deficient number, since it is larger than the sum of its proper divisors (5475).

679069 is a wasteful number, since it uses less digits than its factorization.

679069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5474.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 679069 is about 824.0564301066. The cubic root of 679069 is about 87.8964432668.

It can be divided in two parts, 6790 and 69, that added together give a cube (6859 = 193).

The spelling of 679069 in words is "six hundred seventy-nine thousand, sixty-nine".

Divisors: 1 127 5347 679069