993 arises in the sequence generated by starting with 1, then repeatedly reversing the digits and adding 4: 1, 5, 9, 13, 35, 57, . . . , 989, 993, 403, . . .
993 is the sum of three consecutive pentagonal numbers: 993 = 287 + 330 + 376.
993 is a number n that is a product of two primes j and k such that n + j + k and n - j - k are both primes: 993 + 3 + 331 = 1327 and 993 - 3 - 331 = 659.
993 is the number of paraffins with 8 carbon atoms.
The fantasy role-playing game Dragon Warriors was set in a fantasy world called "Legend," modeled on medieval Europe in roughly 993 AD.
Source: Wikipedia
993 is the number of paraffins with 8 carbon atoms.
The fantasy role-playing game Dragon Warriors was set in a fantasy world called "Legend," modeled on medieval Europe in roughly 993 AD.
Source: Wikipedia
