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680318838171 = 32719954264883
BaseRepresentation
bin10011110011001100010…
…10011010010110011011
32102001000120220210020100
421321212022122112123
542121243110310141
61240311213430443
7100102635465660
oct11714612322633
92361016823210
10680318838171
112425812804a5
12aba2549b423
134c1ccb5775b
1424cdb4d7a67
1512a6b31c0b6
hex9e6629a59b

680318838171 has 24 divisors (see below), whose sum is σ = 1128709587200. Its totient is φ = 386800078896.

The previous prime is 680318838127. The next prime is 680318838193. The reversal of 680318838171 is 171838813086.

It is a happy number.

680318838171 is a `hidden beast` number, since 6 + 80 + 3 + 188 + 381 + 7 + 1 = 666.

It is not a de Polignac number, because 680318838171 - 217 = 680318707099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680318838571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27119905 + ... + 27144978.

Almost surely, 2680318838171 is an apocalyptic number.

680318838171 is a deficient number, since it is larger than the sum of its proper divisors (448390749029).

680318838171 is a wasteful number, since it uses less digits than its factorization.

680318838171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54265095 (or 54265092 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 680318838171 in words is "six hundred eighty billion, three hundred eighteen million, eight hundred thirty-eight thousand, one hundred seventy-one".

Divisors: 1 3 7 9 21 63 199 597 1393 1791 4179 12537 54264883 162794649 379854181 488383947 1139562543 3418687629 10798711717 32396135151 75590982019 97188405453 226772946057 680318838171