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679168724 = 221313060937
BaseRepresentation
bin101000011110110…
…100101011010100
31202022222100100012
4220132310223110
52342331344344
6151220535352
722554560513
oct5036645324
91668870305
10679168724
11319411573
1216b551558
13aa9277b0
14662b467a
153e95a29e
hex287b4ad4

679168724 has 12 divisors (see below), whose sum is σ = 1279971924. Its totient is φ = 313462464.

The previous prime is 679168709. The next prime is 679168741. The reversal of 679168724 is 427861976.

679168724 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 2 ways, for example, as 125037124 + 554131600 = 11182^2 + 23540^2 .

It is a super-2 number, since 2×6791687242 = 922540311319576352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6530417 + ... + 6530520.

It is an arithmetic number, because the mean of its divisors is an integer number (106664327).

Almost surely, 2679168724 is an apocalyptic number.

It is an amenable number.

679168724 is a deficient number, since it is larger than the sum of its proper divisors (600803200).

679168724 is a wasteful number, since it uses less digits than its factorization.

679168724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13060954 (or 13060952 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 50.

The square root of 679168724 is about 26060.8657569161. The cubic root of 679168724 is about 879.0074570438.

The spelling of 679168724 in words is "six hundred seventy-nine million, one hundred sixty-eight thousand, seven hundred twenty-four".

Divisors: 1 2 4 13 26 52 13060937 26121874 52243748 169792181 339584362 679168724