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680885342686 = 2353964426831
BaseRepresentation
bin10011110100001111110…
…11011101000111011110
32102002111001220012100001
421322013323131013132
542123423121431221
61240443331524514
7100122654630433
oct11720773350736
92362431805301
10680885342686
1124284203074a
12abb6315973a
134c290326323
1424d52841b8a
1512aa0e20391
hex9e87edd1de

680885342686 has 8 divisors (see below), whose sum is σ = 1024221295584. Its totient is φ = 339478244160.

The previous prime is 680885342681. The next prime is 680885342713. The reversal of 680885342686 is 686243588086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680885342681) 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, 482212710 + ... + 482214121.

It is an arithmetic number, because the mean of its divisors is an integer number (128027661948).

Almost surely, 2680885342686 is an apocalyptic number.

680885342686 is a deficient number, since it is larger than the sum of its proper divisors (343335952898).

680885342686 is a wasteful number, since it uses less digits than its factorization.

680885342686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964427186.

The product of its (nonzero) digits is 106168320, while the sum is 64.

The spelling of 680885342686 in words is "six hundred eighty billion, eight hundred eighty-five million, three hundred forty-two thousand, six hundred eighty-six".

Divisors: 1 2 353 706 964426831 1928853662 340442671343 680885342686