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680375 = 535443
BaseRepresentation
bin10100110000110110111
31021120022002
42212012313
5133233000
622325515
75532413
oct2460667
91246262
10680375
114251a3
1228989b
131aa8b7
14139d43
15d68d5
hexa61b7

680375 has 8 divisors (see below), whose sum is σ = 849264. Its totient is φ = 544200.

The previous prime is 680353. The next prime is 680377. The reversal of 680375 is 573086.

It is not a de Polignac number, because 680375 - 212 = 676279 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 (680377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2597 + ... + 2846.

It is an arithmetic number, because the mean of its divisors is an integer number (106158).

2680375 is an apocalyptic number.

680375 is a deficient number, since it is larger than the sum of its proper divisors (168889).

680375 is an equidigital number, since it uses as much as digits as its factorization.

680375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5458 (or 5448 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 680375 is about 824.8484709327. The cubic root of 680375 is about 87.9527552876.

The spelling of 680375 in words is "six hundred eighty thousand, three hundred seventy-five".

Divisors: 1 5 25 125 5443 27215 136075 680375