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679675325 = 5272554837
BaseRepresentation
bin101000100000110…
…000010110111101
31202100221002021012
4220200300112331
52342444102300
6151235445005
722562100500
oct5040602675
91670832235
10679675325
1131972814a
1216b756765
13aaa74264
14663a7137
153ea0a435
hex288305bd

679675325 has 18 divisors (see below), whose sum is σ = 980398746. Its totient is φ = 466062240.

The previous prime is 679675313. The next prime is 679675343. The reversal of 679675325 is 523576976.

It can be written as a sum of positive squares in 3 ways, for example, as 5597956 + 674077369 = 2366^2 + 25963^2 .

It is a de Polignac number, because none of the positive numbers 2k-679675325 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 276194 + ... + 278643.

It is an arithmetic number, because the mean of its divisors is an integer number (54466597).

Almost surely, 2679675325 is an apocalyptic number.

It is an amenable number.

679675325 is a deficient number, since it is larger than the sum of its proper divisors (300723421).

679675325 is a wasteful number, since it uses less digits than its factorization.

679675325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554861 (or 554849 counting only the distinct ones).

The product of its digits is 2381400, while the sum is 50.

The square root of 679675325 is about 26070.5835185943. The cubic root of 679675325 is about 879.2259571833.

The spelling of 679675325 in words is "six hundred seventy-nine million, six hundred seventy-five thousand, three hundred twenty-five".

Divisors: 1 5 7 25 35 49 175 245 1225 554837 2774185 3883859 13870925 19419295 27187013 97096475 135935065 679675325