Children as young as eight were abused by Jimmy Savile, a report detailing 50 years of allegations has revealed.
The Met Police and NSPCC outlined offences at 13 hospitals, including Great Ormond Street in London and Wheatfields Hospice in Leeds.
Some 214 crimes were recorded across 28 police force areas, including 34 of rape or penetration, the report said.
The CPS apologised for missing the opportunity to prosecute Savile in 2009, while he was still alive.
Police said the victims' accounts painted a "compelling picture of widespread sexual abuse by a predatory sex offender", and Cdr Peter Spindler, who is leading the investigation, said Savile had "groomed the nation".
And the NSPCC said Savile was one of the most prolific sex offenders in its 129-year history.
The former BBC presenter of Top Of The Pops and Jim'll Fix It, who also worked as a Radio 1 DJ and received a knighthood in 1990, died aged 84 in October 2011 - a year before the allegations emerged in an ITV documentary.
Revelations that Savile had sexually abused children prompted hundreds of victims to come forward, including those who said they were attacked on BBC premises and a number of other institutions.
NSPCC director of child protection advice and awareness Peter Watt said: "The sheer scale of Savile's abuse over six decades simply beggars belief.
"He is without doubt one of the most prolific sex offenders we have ever come across and every number represents a victim that will never get justice now he is dead."
The Giving Victims a Voice report set out the findings of Operation Yewtree, which launched three months ago to investigate the Savile abuse claims.
The 30-page document detailed a number of findings, including:- Savile offended at 13 hospitals, including Great Ormond Street, with one offence recorded at Wheatfields Hospice in 1977
- A total of 14 offences were recorded in relation to schools
- Savile's youngest victim was an eight-year-old boy, and the oldest was 47
- The earliest allegation is from 1955 in Manchester and the last is from 2009
- Offences were carried out at the BBC between 1965 and 2006, including at the last Top of the Pops recording
Peak offending took place between 1966 and 1976
- A total of 450 people have made sexual abuse allegations against Savile since October - of whom 73% were under 18, with most aged 13 to 16
- There is "no clear evidence" he operated in paedophile ring, although "whether he was part of an informal network" is still being investigated
In response to the report, the BBC said it was "appalled" some of the offences were committed on its premises and restated a "sincere apology to the victims of these crimes".
The report also revealed 16 offences were committed at Leeds General Infirmary between 1965-95 and 22 at Stoke Mandeville Hospital between 1965-88.
One offence was committed at each of the following hospitals - Broadmoor high-security psychiatric hospital, St James Leeds Hospital, High Royds Psychiatric Hospital, Dewsbury Hospital, Wycombe General Hospital, Great Ormond Street Hospital in 1971, Ashworth Hospital, Exeter Hospital, Royal Portsmouth Hospital, St Catherine's Hospital in Birkenhead, and Saxondale Mental Health.
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