1. It is the product of two primes with the unique property that the sum of digits of 82 is equal to the product of sum of digits of its prime factors.
82 = 2 x 41 and 8+ 2 = 10 = 2 x ( 4 + 1)
2. It can be expressed as the sum of two primes in 5 different ways.
82 = 3 + 79
= 11 + 71
= 23 + 59
= 29 + 53
= 41 + 41
3. It is a 15 gonal number as well as a centered 27- gonal number.
4. Six hexagons can be linked in 82 different ways. A figure made from 6 hexagons is called hexahex. One arrangement is shown here.
5. The atomic number of Lead is 82.
6. On Ternary base it is a Palindrome digits. (10001)3 = (82)10.
Dr Rajesh Kumar Thakur
rkthakur1974@gmail.com
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