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680785012 = 22228774419
BaseRepresentation
bin101000100100111…
…111010001110100
31202110000110110201
4220210333101310
52343240110022
6151315330244
722604401645
oct5044772164
91673013421
10680785012
1131a315946
1216bbb0984
13ab07238b
14665b56cc
153eb79127
hex2893f474

680785012 has 12 divisors (see below), whose sum is σ = 1191910720. Its totient is φ = 340239096.

The previous prime is 680784997. The next prime is 680785013. The reversal of 680785012 is 210587086.

680785012 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 (680785013) 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, 28062 + ... + 46357.

Almost surely, 2680785012 is an apocalyptic number.

It is an amenable number.

680785012 is a deficient number, since it is larger than the sum of its proper divisors (511125708).

680785012 is a wasteful number, since it uses less digits than its factorization.

680785012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76710 (or 76708 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 680785012 is about 26091.8571972177. The cubic root of 680785012 is about 879.7041929326.

It can be divided in two parts, 6807 and 85012, that added together give a palindrome (91819).

The spelling of 680785012 in words is "six hundred eighty million, seven hundred eighty-five thousand, twelve".

Divisors: 1 2 4 2287 4574 9148 74419 148838 297676 170196253 340392506 680785012