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Sociable numbers are the numbers in cyclic lists of numbers (with a length greater than 2) where each number is the sum of the proper divisors of the preceding number. For example, 1264460 ↦ 1547860 ↦ 1727636 ↦ 1305184 ↦ 1264460 ↦ … {\displaystyle 1264460\mapsto 1547860\mapsto 1727636\mapsto 1305184\mapsto 1264460\mapsto \dots } are ...
On 2009-03-07 at 02:00 UTC, phone numbers in Morocco got another additional digit. A 5 was prepended to all fixed numbers while a 6 was prepended to mobile numbers. The 08 numbers became 080 and 09 became 089.
This article details the dialling protocol for reaching Hungarian telephone numbers from within Hungary. The standard landline number consists of 6 numerals except those in Budapest which have 7 numerals, as do mobile numbers. Before keying the subscriber number required, a caller may need to enter a domestic code (06) and an area code.
Iraq area codes can be 1 or 2 digits (not counting the trunk prefix 0) and the subscriber numbers are usually 6 digits. In Baghdad and some other governorates, they are 7 digits. The mobile numbers have 10 digits, beginning with the 3-digit code of each operator followed by 7 digits.
For mobile subscribers, formerly seven (to call another subscriber using the same operator) or eleven (to call any mobile subscriber) digits were used. [1] For special number ranges, formerly ten digits were used, but the initial '0' was dropped. [1] These changes made that nine digits were used for all calls after 1999. [1]
The Knudsen number is a dimensionless number defined as =, where = mean free path [L 1], = representative physical length scale [L 1].. The representative length scale considered, , may correspond to various physical traits of a system, but most commonly relates to a gap length over which thermal transport or mass transport occurs through a gas phase.
Paging services 64 x 000 64 x xxx xxx Carrier Selection Code 10xx 10xxx UTR VSAT, Tekstofon, Fixed SMS 802 xxx xxx UAN (universal number) 804 xxx xxx VPN 806 xxx xxx VCC 808 xxx xxx VoIP 39x xxx xxx NDSI – dialed access to data networks incl. Internet 20 xx xx
When the current format was adopted in that year, existing toll-free numbers were given the format 01-800-0XX-XXXX. These numbers were advertised with the grouping 01-8000-XX-XXX, leading many people to erroneously believe that the general prefix for toll-free numbers is 01-8000.