Number
1. It is the sum of divisors of the first ten integers.
2. It is the sum of square of the first four primes.
87 = 2^2 + 3^2 + 5^2 + 7^2
3. It is the sum of 6 consecutive numbers.
87 = 12 + 13 + 14 + 15 + 16 + 17
4. It is a 30 –gonal number.
5. It can be partitioned 44 times with each term not larger than 2
6. It is regarded as an unlucky number in Cricket as it is 13 short of 100.
Dr Rajesh Kr Thakur
rkthakur1974@gmail.com
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