Sauer 100 is screw in, 101 is not. @Philipo is currently doing a review on the 100 for a magazine, im sure he wpuld love to share his unbiased opinion..
Sauer 100 is screw in, 101 is not. @Philipo is currently doing a review on the 100 for a magazine, im sure he wpuld love to share his unbiased opinion..
270 is a harmonic divisor number[1]
270 is the fourth number that is divisible by its average integer divisor[2]
270 is a practical number, by the second definition
The sum of the coprime counts for the first 29 integers is 270
270 is a sparsely totient number, the largest integer with 72 as its totient
Given 6 elements, there are 270 square permutations[3]
10! has 270 divisors
270 is the smallest positive integer that has divisors ending by digits 1, 2, …, 9.
Bookmarks