UPDATE 9-Sri Lanka gets new president in six-time PM Wickremesinghe

* Acting president wins 134 votes in 225-member parliament

* Wickremesinghe calls for unity in the face of challenges

* Bailout negotiations can be completed quickly -IMF before vote (Adds Sri Lanka investor quote, chart)

By Uditha Jayasinghe, Alasdair Pal and Devjyot Ghoshal

COLOMBO, July 20 (Reuters) - Sri Lankan lawmakers voted in acting President Ranil Wickremesinghe as the new president on Wednesday, hoping his long experience in government can help pull the country out of a crippling economic and political crisis.

The six-time prime minister won 134 votes in the 225-member parliament, despite public anger with the ruling elite after months of severe shortages of fuel, food and medicines. A popular uprising ousted his predecessor Gotabaya Rajapaksa last week.

"I would like to bring everyone together so that a national consensus is formed as to the way forward," Wickremesinghe, 73, told reporters after praying at Colombo's old Buddhist Gangaramaya Temple.

He denied being close to the Rajapaksa clan, seven of whose members were in the government as of April before street protests started forcing them out.

"I am not a friend of the Rajapaksas. I am a friend of the people," said Wickremesinghe, who is expected to be sworn in by the chief justice on Thursday.

Wickremesinghe is unpopular among some protesters who stormed his official residence this month when he was prime minister and burnt down his private house.

But the response to his win was broadly muted, with only around 100 people gathered on the steps of the presidential secretariat, albeit with some vowing to focus on dislodging him.

"We're shocked. He's a person handling things in a very cunning way," protester Damitha Abeyrathne said. "He will start controlling us in a different way. As protesters, we will start our struggle again."

Many of the hundreds of thousands who poured into the streets to force the ouster of Rajapaksa had wanted Wickremesinghe gone too, labelling him an ally of the Rajapaksa family.

But one organiser of previous protests, Chameera Dedduwage, said Rajapaksa's removal had been one of the movement's goals, and protesters would have to be satisfied with achieving it.

Wickremesinghe took over as acting president last week, after Rajapaksa fled on a military plane to the Maldives before taking a commercial flight to Singapore.

The other key candidate in Wednesday's contest, ruling party lawmaker Dullas Alahapperuma, received 82 votes. A third candidate, Anura Kumara Dissanayaka, got just three. Two lawmakers did not vote and four votes were ruled invalid.