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680957684 = 221141377471
BaseRepresentation
bin101000100101101…
…001011011110100
31202110100020022222
4220211221123310
52343311121214
6151323141512
722606021241
oct5045513364
91673306288
10680957684
1131a423650
12170074898
13ab102b54
146661c5c8
153ebb038e
hex289696f4

680957684 has 24 divisors (see below), whose sum is σ = 1331721216. Its totient is φ = 301976000.

The previous prime is 680957681. The next prime is 680957699. The reversal of 680957684 is 486759086.

680957684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680957681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186932 + ... + 190539.

It is an arithmetic number, because the mean of its divisors is an integer number (55488384).

Almost surely, 2680957684 is an apocalyptic number.

It is an amenable number.

680957684 is a deficient number, since it is larger than the sum of its proper divisors (650763532).

680957684 is a wasteful number, since it uses less digits than its factorization.

680957684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377527 (or 377525 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The square root of 680957684 is about 26095.1659124827. The cubic root of 680957684 is about 879.7785617074.

The spelling of 680957684 in words is "six hundred eighty million, nine hundred fifty-seven thousand, six hundred eighty-four".

Divisors: 1 2 4 11 22 41 44 82 164 451 902 1804 377471 754942 1509884 4152181 8304362 15476311 16608724 30952622 61905244 170239421 340478842 680957684