Citations:xennagram

A unit of mass equal to 1,000,000,000,000,000,000,000,000,000 or 10$27$ grams.
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 * 1997, Council of Scientific & Industrial Research, Science Reporter Vol. 34, page 23:
 * If we try to calculate the mass of earth it comes to 6 xennagrams which is nothing but 6x1024 kilograms or 6x1027 gms.
 * 2015, Claude Phipps, No Wonder You Wonder!: Great Inventions and Scientific Mysteries, Springer, page 14:
 * The mass of the earth is about 6 Xennagrams, or Xg.