30 (number)

30 (thirty) is the natural number following 29 and preceding 31.

In mathematics

30 is the sum of the first four squares, which makes it a square pyramidal number.

It is a primorial and is the smallest Giuga number.

30 is the smallest sphenic number, and the smallest of the form 2 × 3 × r, where r is a prime greater than 3. 30 has an aliquot sum of 42; the second sphenic number and all sphenic numbers of this form have an aliquot sum 12 greater than themselves. The aliquot sequence of 30 is 16 members long, it comprises (30,42,54,66,78,90,144,259,45,33,15,9,4,3,1,0)

Thirty has but one number for which it is the aliquot sum: the square number 841.

Adding up some subsets of its divisors (e.g., 5, 10 and 15) gives 30, hence 30 is a semiperfect number.

30 is the largest number such that all coprimes smaller than itself, except for 1, are prime.

A polygon with thirty sides is called a triacontagon.

The icosahedron and the dodecahedron are Platonic solids with 30 edges. The icosidodecahedron is an Archimedean solid with 30 vertices, and the Tutte–Coxeter graph is a symmetric graph with 30 vertices.

30th Anniversary

30th Anniversary or 30th Anniversary Collection may refer to:

Music

See also

October 30

October 30 is the 303rd day of the year (304th in leap years) in the Gregorian calendar. There are 62 days remaining until the end of the year.

Events

ETV Telugu

ETV Telugu is the first 24-hour general entertainment Telugu channel. It revolutionised the regional television industry with its programming quality and broadcasting standards.

Popularity

Established in 1995, ETV channels cater to the regional requirements from the Indian States of Andhra Pradesh and Telangana and have gained tremendous popularity among the Telugu language speaking population across the world.

See also

External links

Padutha Theeyaga

Padutha Theeyaga is a reality-based Indian singing competition in Telugu that airs on Etv Telugu. The program seeks to discover the best singing talent in Andhra Pradesh through a series of statewide auditions.

This is the First Music Based Reality Show in South India. The show is hosted by the one of the most popular Indian playback singers, PadmaBhushan Dr. S. P. Balasubrahmanyam,who hails from Andhra Pradesh, South India. He has sung songs in most of the Indian languages and is a recipient of National award. He was honored with Padmasri in 2001 and PadmaBhushan in 2011 by the Indian Government for his contributions to the Indian music industry.

The show usually airs on Monday night at 9:30 PM in India and is telecast worldwide through partner broadcasting networks.

The program first started in the90s, and it gave a platform for a lot of now famous singers such as Mallikarjuna, Usha, Parthasaradhi, Sandip, Karunya, Hemachandra, Gopika Poornima, Kousalya, Venu, Geetha Madhuri etc......