Teaser 2128: Goodbye, Norma Jean(e)

From The Sunday Times, 29th June 2003 [link]

 

She was originally Norma Jean Baker, then she called herself Norma Jeane, before becoming the much-loved Marilyn Monroe. It is more than 40 years since she died and yet people still remember her fondly. Today we celebrate her life once again in the above addition sum, where each letter stands consistently for a different non-zero digit and O is prime.

What is the numerical value of JAMBOREE?

[teaser2128]