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680888 = 23136547
BaseRepresentation
bin10100110001110111000
31021121000002
42212032320
5133242023
622332132
75534045
oct2461670
91247002
10680888
1142561a
1228a048
131aabc0
1413a1cc
15d6b28
hexa63b8

680888 has 16 divisors (see below), whose sum is σ = 1375080. Its totient is φ = 314208.

The previous prime is 680881. The next prime is 680917. The reversal of 680888 is 888086.

680888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

680888 is a modest number, since divided by 888 gives 680 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680881) 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, 3170 + ... + 3377.

2680888 is an apocalyptic number.

It is an amenable number.

680888 is an abundant number, since it is smaller than the sum of its proper divisors (694192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680888 is a wasteful number, since it uses less digits than its factorization.

680888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6566 (or 6562 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 680888 is about 825.1593785445. The cubic root of 680888 is about 87.9748550748.

The spelling of 680888 in words is "six hundred eighty thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 13 26 52 104 6547 13094 26188 52376 85111 170222 340444 680888