134023

Appears in sequences

• Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 23 (most significant digit on right and removing all least significant zeros before concatenation).at n=11A029540
• Numbers k that are the products of two distinct primes such that 2*k-1, 4*k-3, 8*k-7, 16*k-15, 32*k-31, 64*k-63 and 128*k-127 are also products of two distinct primes.at n=15A177216