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680947366 = 21189457761
BaseRepresentation
bin101000100101100…
…110111010100110
31202110022201011211
4220211212322212
52343310303431
6151323022034
722605646201
oct5045467246
91673281154
10680947366
1131a416920
1217006a91a
13ab0cb248
1466618938
153ebac2b1
hex28966ea6

680947366 has 32 divisors (see below), whose sum is σ = 1130747040. Its totient is φ = 304972800.

The previous prime is 680947363. The next prime is 680947367. The reversal of 680947366 is 663749086.

680947366 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 (680947363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 894426 + ... + 895186.

It is an arithmetic number, because the mean of its divisors is an integer number (35335845).

Almost surely, 2680947366 is an apocalyptic number.

680947366 is a deficient number, since it is larger than the sum of its proper divisors (449799674).

680947366 is a wasteful number, since it uses less digits than its factorization.

680947366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The square root of 680947366 is about 26094.9682122818. The cubic root of 680947366 is about 879.7741181611.

The spelling of 680947366 in words is "six hundred eighty million, nine hundred forty-seven thousand, three hundred sixty-six".

Divisors: 1 2 11 22 89 178 457 761 914 979 1522 1958 5027 8371 10054 16742 40673 67729 81346 135458 347777 447403 695554 745019 894806 1490038 3825547 7651094 30952153 61904306 340473683 680947366