12 18 20 24 30 36 40 42 48 54 56 60 70 72 78 80 84 90 96 100
The digit appears eleven time from 1 to 100.
1/100
2,3,5,7,11,13,17,19,23,31,37,41,47,53,59,61,67,71,73,79,83,89,97
25 of them.
The first five abundant numbers are 12, 18, 20, 24, and 30.
Prime numbers are abundant, in fact there is an infinite about of prime numbers. There is just and infinitely greater amount of non-prime numbers.
No, the first abundant number is 12.
2abundant numbers are 3 and 5
Every sixth number for 12 and more will be an abundant number
Yes, this is well known. All integral multiples of any perfect, or abundant number must be an abundant number.
There are more deficient numbers.
Because none of the numbers smaller than 12 are abundant.