102 (number)

102 (one hundred [and] two) is the natural number following 101 and preceding 103.
102 Cardinal one hundred [and] two Ordinal 102nd
(one hundred [and] second)Numeral system 102 Factorization Divisors 1, 2, 3, 6, 17, 34, 51, 102 Roman numeral CII Binary 1100110_{2} Octal 146_{8} Duodecimal 86_{12} Hexadecimal 66_{16} Contents
In mathematics
102 is an abundant number and semiperfect number. It is a sphenic number. It is the sum of four consecutive prime numbers (19 + 23 + 29 + 31).
The sum of Euler's totient function φ(x) over the first eighteen integers is 102.
102 is the third base 10 polydivisible number, since 1 is divisible by 1, 10 is divisible by 2 and 102 is divisible by 3. This also shows that 102 is a Harshad number.
In science
 The atomic number of nobelium, an actinide.
In other fields
102 is also:
 The emergency telephone number for police in Ukraine and Belarus
 The emergency telephone number for fire in Israel
 The emergency telephone number for ambulance in parts of India
 The Empire State Building in New York City has 102 floors
See also
References
 Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 133
Categories: Integers
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