106 (number)

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106 (one hundred [and] six) is the natural number following 105 and preceding 107.

In mathematics[]

106 is the thirty-first distinct biprime and the fifteenth of the form (2.q). The aliquot sum of 106 is 56 within the aliquot sequence (106,56,64,63,41,1) 106 being the eleventh composite number in the 41-aliquot tree. 106 is a centered pentagonal number,^[1] a centered heptagonal number,^[2] and a regular 19-gonal number.^[3] There are 106 distinct mathematical trees with ten vertices.

In other fields[]

106 is also:

• The year AD 106 or 106 BC.
• The atomic number of seaborgium (unnilhexium Unh).
• The number of surat Quraysh in the Qur'an.
• The Australian national text emergency number.
• The maximum number of characters filenames can have in Joliet, an extension to the ISO 9660 file system.

See also[]

• List of highways numbered 106

References[]