1. A piano has 88 keys with 36 black and 52 white.
2. It is the 6th number that stays same when written upside down.
3. It is the only known number whose square has no isolated digits.
88^2 = 7744
4. It is the sum of 4 consecutive primes.
88 = 17 + 19 + 23 + 29
5. It is an untouchable number. An untouchable number is a positive integer that can’t be expressed as the sum of all the proper divisor of any number.
The first 10 untouchable numbers are- 2, 5, 52, 88, 96, 120, 124, 146, 162 and 188.
6. International Astronomical Union has defined 88 constellations divided into 8 families—Ursa Major family, Zodiacal family, Perseus family, Heavenly waters, Orion Group, Bayer Group, La Cille family and Hercules family.
7. It is a 16 gonal number.
8. It is an abundant number.
9. It is a centered 29-gonal number.
Dr Rajesh K Thakur
rkthakur1974@gmail.com
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