# What is a Star Star number?

## What is a Star Star number?

StarStar numbers allow consumers with mobile phones to connect directly to a business and receive an SMS message which enables them to choose whether they want to be connected to a person, to be directed to a mobile website or to download a mobile application.

## What is Star phone?

StarPhone™ for Android combines a full-featured IP telephone application with advanced Presence and Voicemail tools. This easy-to-use softphone allows Users to place and receive calls using their company’s Star2Star telephone system.

## How does Star phone work?

Customers dial your StarStar number just like a regular phone number. Calls work on most cell phones in the United States. StarStar Numbers are much more than just short phone numbers. Callers connect with voice, text, and via online engagement all from a single phone call.

## How are star numbers calculated?

The digital root of a star number is always 1 or 4, and progresses in the sequence 1, 4, 1. The last two digits of a star number in base 10 are always 01, 13, 21, 33, 37, 41, 53, 61, 73, 81, or 93….Star number.

First four star numbers, by color.
Total no. of terms infinity
First terms 1, 13, 37, 73, 121, 181
OEIS index A003154 star

## How do you star numbers?

A star number is a centered figurate number, a centered hexagram (six-pointed star), such as the one that Chinese checkers is played on. The nth star number is given by the formula \(S_n = 6*n*(n − 1) + 1\).

## What number is M on a phone?

In the mid-20th century United States, before the switch to All-Number Calling, telephone numbers had seven digits including a two-digit prefix which was expressed in letters rather than digits, e.g.; KL5-5445….Layout.

Number Letter
3 DEF
4 GHI
5 JKL
6 MNO (on some older telephones, MN)

## What is the longest phone number?

The International Telecommunication Union (ITU) has established a comprehensive numbering plan, designated E. 164, for uniform interoperability of the networks of its member state or regional administrations. It is an open numbering plan, however, imposing a maximum length of 15 digits to telephone numbers.