0046

Forty-six is: thirteenth discrete semiprime ( 2 × 23 {\displaystyle 2\times 23}) and the eighth of the form (2.q), where q is a higher prime, with an aliquot sum of 26; a semiprime, in an aliquot sequence of six composite numbers (46, 26, 16, 15, 9, 4, 3, 1, 0) in the prime 3-aliquot tree, a Wedderburn-Etherington number, the second non-trivial enneagonal number, after 24, a centered triangular number, the number of parallelogram polyominoes with 6 cells. the amount of prime numbers in between 1 and 200.