Thursday, December 27, 2012

43


From Wikipedia:

Forty-three is the 14th smallest prime number. The previous is forty-one, with which it comprises a twin prime, and the next is forty-seven. A twin prime is a prime number that differs from another prime number by two.

43 is the smallest prime that is not a Chen prime. A prime number p is called a Chen prime if p + 2 is either a prime or a product of two primes (also called semiprimes).

43 is the fourth term of Sylvester's sequence, one more than the product of the previous terms (2 × 3 × 7). Sylvester's sequence is an integer sequence in which each member of the sequence is the product of the previous members, plus one.

43 is a centered heptagonal number. A centered heptagonal number is a centered figurate number that represents a heptagon with a dot in the center and all other dots surrounding the center dot in successive heptagonal layers.

43 is a repdigit in base 6 (111). A repdigit is a natural number composed of repeated instances of the same digit, most often in the decimal numeral system.

On the whole, a largely unremarkable number.

Tuesday, December 18, 2012

Look to Hope

No matter how bleak the season we go on with the hope that the sun will shine tomorrow.

Sunday, December 16, 2012

On the Hunt

Hello. Yes, I'm still here. If this blog has been quiet lately it's because of a couple of things:

  1. I came down with a bad case of the flu.  Out of commission for a week, continued coughs for another two.  When I was finally well enough, there was paperwork everywhere and I had lost my blogging groove.
  2. Typhoon Pablo. I live in Davao City, and we came out of it okay.  Not so with neighboring Davao Oriental and Compostela Valley.  With such destruction, I didn't feel much like making merry online.
 And now, more sadness from the other side of the world. 

Sheen

I like how the camera caught the sheen of the feathers of the back of this peacock.  Serendipitous shot, as I was aiming for the head of the bird.  Taken at Eden Nature Park.