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680715359 = 4943137713
BaseRepresentation
bin101000100100101…
…110010001011111
31202102212220220222
4220210232101133
52343230342414
6151314031555
722603661612
oct5044562137
91672786828
10680715359
1131a278585
1216bb785bb
13ab04976c
1466598179
153eb6368e
hex2892e45f

680715359 has 4 divisors (see below), whose sum is σ = 680858016. Its totient is φ = 680572704.

The previous prime is 680715353. The next prime is 680715367. The reversal of 680715359 is 953517086.

680715359 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, and also an emirpimes, since its reverse is a distinct semiprime: 953517086 = 2476758543.

It is a cyclic number.

It is not a de Polignac number, because 680715359 - 28 = 680715103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680715353) 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, 63914 + ... + 73799.

It is an arithmetic number, because the mean of its divisors is an integer number (170214504).

Almost surely, 2680715359 is an apocalyptic number.

680715359 is a deficient number, since it is larger than the sum of its proper divisors (142657).

680715359 is a wasteful number, since it uses less digits than its factorization.

680715359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142656.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 680715359 is about 26090.5223979897. The cubic root of 680715359 is about 879.6741902519.

The spelling of 680715359 in words is "six hundred eighty million, seven hundred fifteen thousand, three hundred fifty-nine".

Divisors: 1 4943 137713 680715359