portrait: 70

70 is the fourth discrete sphenic number, as the first of the form 2 × 5 × r {\displaystyle 2\times 5\times r}. It is the smallest weird number, a natural number that is abundant but not semiperfect, where it is also the second-smallest primitive abundant number, after 20. 70 is in equivalence with the sum between the smallest number that is the sum of two abundant numbers, and the largest that is not (24, 46).