# stdnum.au.acn

ACN (Australian Company Number).

The Australian Company Number (ACN) is a company identifier issued by the Australian Securities and Investments Commission.

More information:

- https://en.wikipedia.org/wiki/Australian_Company_Number

    >>> validate('004 085 616')
    '004085616'
    >>> validate('010 499 966')
    '010499966'
    >>> validate('999 999 999')
    Traceback (most recent call last):
        ...
    InvalidChecksum: ...
    >>> format('004085616')
    '004 085 616'
    >>> to_abn('002 724 334')
    '43002724334'

`stdnum.au.acn.``calc_check_digit`(number)

  Calculate the checksum.

`stdnum.au.acn.``compact`(number)

  Convert the number to the minimal representation. This strips the number of any valid separators and removes surrounding whitespace.

`stdnum.au.acn.``format`(number)

  Reformat the number to the standard presentation format.

`stdnum.au.acn.``is_valid`(number)

  Check if the number is a valid ACN.

`stdnum.au.acn.``to_abn`(number)

  Convert the number to an Australian Business Number (ABN).

`stdnum.au.acn.``validate`(number)

  Check if the number is a valid ACN. This checks the length, formatting and check digit.