Search a number
polite and impolite numbers
Impolite: a number that cannot be expressed as the sum of at least two consecutive natural numbers. more

The impolite numbers up to 1015 :

Distribution of the remainders when the numbers in this family are divided by n=2, 3,..., 11. (I took into account 50 values, from 1 to 562949953421312).

n\r 0  1 
2491 2 
302525 3 
448110 4 
5013131212 5 
601250240 6 
70171701600 7 
8471101000 8 
9099088088 9 
1001130120120120 10 
1105555555555

A pictorial representation of the table above
motab
Imagine to divide the members of this family by a number n and compute the remainders. Should they be uniformly distributed, each remainder from 0 to n-1 would be obtained in about (1/n)-th of the cases. This outcome is represented by a white square. Reddish (resp. bluish) squares represent remainders which appear more (resp. less) frequently than 1/n.