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680375195 = 51271071457
BaseRepresentation
bin101000100011011…
…011001110011011
31202102020122022022
4220203123032123
52343134001240
6151302445055
722601044103
oct5043331633
91672218268
10680375195
1131a065a55
1216ba3378b
13aac5a996
146650a203
153eae79b5
hex288db39b

680375195 has 8 divisors (see below), whose sum is σ = 822879744. Its totient is φ = 540013824.

The previous prime is 680375191. The next prime is 680375249. The reversal of 680375195 is 591573086.

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

It is a cyclic number.

It is not a de Polignac number, because 680375195 - 22 = 680375191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680375191) 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, 535094 + ... + 536363.

It is an arithmetic number, because the mean of its divisors is an integer number (102859968).

Almost surely, 2680375195 is an apocalyptic number.

680375195 is a deficient number, since it is larger than the sum of its proper divisors (142504549).

680375195 is a wasteful number, since it uses less digits than its factorization.

680375195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071589.

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

The square root of 680375195 is about 26084.0026644685. The cubic root of 680375195 is about 879.5276369019.

The spelling of 680375195 in words is "six hundred eighty million, three hundred seventy-five thousand, one hundred ninety-five".

Divisors: 1 5 127 635 1071457 5357285 136075039 680375195