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679001 = 4116561
BaseRepresentation
bin10100101110001011001
31021111102012
42211301121
5133212001
622315305
75525411
oct2456131
91244365
10679001
11424164
12288b35
131aa09b
14139641
15d62bb
hexa5c59

679001 has 4 divisors (see below), whose sum is σ = 695604. Its totient is φ = 662400.

The previous prime is 678989. The next prime is 679033. The reversal of 679001 is 100976.

It is a happy number.

679001 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.

It can be written as a sum of positive squares in 2 ways, for example, as 30976 + 648025 = 176^2 + 805^2 .

It is a cyclic number.

It is not a de Polignac number, because 679001 - 214 = 662617 is a prime.

It is a super-2 number, since 2×6790012 = 922084716002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (679051) 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, 8240 + ... + 8321.

It is an arithmetic number, because the mean of its divisors is an integer number (173901).

2679001 is an apocalyptic number.

It is an amenable number.

679001 is a deficient number, since it is larger than the sum of its proper divisors (16603).

679001 is a wasteful number, since it uses less digits than its factorization.

679001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16602.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 679001 is about 824.0151697633. The cubic root of 679001 is about 87.8935092706.

Adding to 679001 its reverse (100976), we get a palindrome (779977).

The spelling of 679001 in words is "six hundred seventy-nine thousand, one".

Divisors: 1 41 16561 679001