Monday, February 22, 2010
2658
2658
= 2 x 3 x 443.
2658
has the representation 2
5
x 3
4
+ 66.
2658
is the
number of 8-digit numbers in base 6 with adjacent digits differing by one or less
.
2658
1
+
2658
2
+
2658
3
+
2658
4
+ 1 and
2658
1
+
2658
2
+
2658
3
+
2658
4
- 1 are twin primes.
2658
is a square-free number and its neighbors, 2657 and 2659, are both primes.
NGC
2658
is an open cluster in the constellation Pyxis.
Source:
On-Line Encyclopedia of Integer Sequences
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