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680765683 = 1352366591
BaseRepresentation
bin101000100100111…
…010100011110011
31202102222110221211
4220210322203303
52343234000213
6151315100551
722604261413
oct5044724363
91672873854
10680765683
1131a302374
1216bba1757
13ab066640
14665ac643
153eb7353d
hex2893a8f3

680765683 has 4 divisors (see below), whose sum is σ = 733132288. Its totient is φ = 628399080.

The previous prime is 680765671. The next prime is 680765689. The reversal of 680765683 is 386567086.

It is a happy number.

680765683 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 680765683 - 25 = 680765651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680765689) 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, 26183283 + ... + 26183308.

It is an arithmetic number, because the mean of its divisors is an integer number (183283072).

Almost surely, 2680765683 is an apocalyptic number.

680765683 is a deficient number, since it is larger than the sum of its proper divisors (52366605).

680765683 is a wasteful number, since it uses less digits than its factorization.

680765683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52366604.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The square root of 680765683 is about 26091.4867916721. The cubic root of 680765683 is about 879.6958672679.

The spelling of 680765683 in words is "six hundred eighty million, seven hundred sixty-five thousand, six hundred eighty-three".

Divisors: 1 13 52366591 680765683