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679025 = 52157173
BaseRepresentation
bin10100101110001110001
31021111110002
42211301301
5133212100
622315345
75525444
oct2456161
91244402
10679025
11424186
12288b55
131aa0b9
1413965b
15d62d5
hexa5c71

679025 has 12 divisors (see below), whose sum is σ = 852252. Its totient is φ = 536640.

The previous prime is 678989. The next prime is 679033. The reversal of 679025 is 520976.

679025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 49 + 678976 = 7^2 + 824^2 .

It is not a de Polignac number, because 679025 - 212 = 674929 is a prime.

It is a super-2 number, since 2×6790252 = 922149901250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3839 + ... + 4011.

It is an arithmetic number, because the mean of its divisors is an integer number (71021).

2679025 is an apocalyptic number.

It is an amenable number.

679025 is a deficient number, since it is larger than the sum of its proper divisors (173227).

679025 is a wasteful number, since it uses less digits than its factorization.

679025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 679025 is about 824.0297324733. The cubic root of 679025 is about 87.8945448211.

The spelling of 679025 in words is "six hundred seventy-nine thousand, twenty-five".

Divisors: 1 5 25 157 173 785 865 3925 4325 27161 135805 679025