102 (number)
102 (one hundred [and] two) is the natural number following 101 and preceding 103.
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| Cardinal | one hundred two | |||
| Ordinal | 102nd (one hundred second) | |||
| Factorization | 2 × 3 × 17 | |||
| Divisors | 1, 2, 3, 6, 17, 34, 51, 102 | |||
| Greek numeral | ΡΒ´ | |||
| Roman numeral | CII | |||
| Binary | 11001102 | |||
| Ternary | 102103 | |||
| Octal | 1468 | |||
| Duodecimal | 8612 | |||
| Hexadecimal | 6616 | |||
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. 102 is the first 3-digit number divisible by the numbers 3, 6, 17, 34 and 51.
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
gollark: Median might not actually be the right term either, but it's probably close enough.
gollark: There are two *medians*. There are not two *means*. This is why I said "mean" and not "average" a lot.
gollark: Sure. What is that modelling?
gollark: But in most cases they are motivated by real world examples of some kind.
gollark: Probability distributions are just functions, and you can define functions with all kinds of fun properties even if they aren't actually things you would likely encounter in real life.
See also
- List of highways numbered 102
- One Hundred and Two, a song by The Judds
References
- Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 133
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