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680107191 = 3359631483
BaseRepresentation
bin101000100010011…
…001110010110111
31202101202000200020
4220202121302313
52343101412231
6151253020223
722565546541
oct5042316267
91671660606
10680107191
113199a2665
1216b924673
13aab959ba
146647a691
153ea93396
hex28899cb7

680107191 has 8 divisors (see below), whose sum is σ = 909336960. Its totient is φ = 452141112.

The previous prime is 680107189. The next prime is 680107193. The reversal of 680107191 is 191701086.

680107191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (680107189) and next prime (680107193).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 680107191 - 21 = 680107189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680107193) 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, 314665 + ... + 316818.

It is an arithmetic number, because the mean of its divisors is an integer number (113667120).

Almost surely, 2680107191 is an apocalyptic number.

680107191 is a deficient number, since it is larger than the sum of its proper divisors (229229769).

680107191 is a wasteful number, since it uses less digits than its factorization.

680107191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631845.

The product of its (nonzero) digits is 3024, while the sum is 33.

The square root of 680107191 is about 26078.8648334240. The cubic root of 680107191 is about 879.4121379422.

The spelling of 680107191 in words is "six hundred eighty million, one hundred seven thousand, one hundred ninety-one".

Divisors: 1 3 359 1077 631483 1894449 226702397 680107191