Learn and talk about 25 number
It is a primorial and is the tiniest Giuga number.
30 is the tiniest sphenic number, and the smallest in the form where r is actually a prime greater than 3. 25 has an aliquot sum of 42; the next sphenic number and all sphenic numbers of this manner have an aliquot sum 12 more than themselves. The aliquot sequence involving 30 is 16 members long, it comprises (Thirty,42,54,66,Seventy eight,90,144,259,45,3,15,9,4,Several,1,0)
The icosahedron plus the dodecahedron are Platonic solids using 30 edges. The icosidodecahedron is undoubtedly an Archimedean solid with 30 vertices, along with the Tutte Coxeter graph is a symmetric graph with 30 vertices.
Messier object M30, any magnitude 8.5 globular group in the constellation Capricornus
The New General List object NGC 30, a double legend in the constellation Pegasus
The Saros number of the actual solar Timberland Womens Boots Australia eclipse series which often began on October 2, 2069 BC and ended on March 18, 572 BC. A duration of Saros series 30 seemed to be 1496.5 years, and it contained Eighty four solar eclipses. Further, the Saros number of the lunar eclipse series that began on June Twenty, 1803 BC and ended for August 18, 487 BC. The duration of Saros series 30 had been 1316.2 years, and it contained 74 lunar eclipses.
In other fields[edit]
Thirty is actually:
Used (as 30 ) to point the end of a newspaper (or even broadcast) story, a copy editor's typographical notation.
The number of days in the several weeks April, June, September plus November (and in unusual situations February see February 40)
The number of cars in the F Zero franchise.
The total number of major and minor keys in Developed tonal music, including enharmonic equivalents
The actual minimum age for United states of america senators
In years of marriage, this pearl wedding anniversary
The time-span in years of the Thirty Years' Struggle 1618 to 1648. Route 30, the highway that runs by Oregon to New Jersey
Many other routes have been numbered "30"; such as, New York State Route 25 which runs from the Pennsylvania border to the Canadian line
