Post counting thread.

35 x 16 = 560, not 570. 570 = 19 x 2 x 3 x 5

So this post needs to be 571.

572 is divisible by 11 without remainder. I can see this without calculation, because the 1st and 3rd digits, added together, equal the 2nd digit. One of those mental tricks we learned in Year 4. Useful because the 11 trick and the 9 trick, used on a spreadsheet, can identify 26 cents incorrectly entered as 26 dollars. Of course, that was before we handed over our basic maths to AI and lost the ability to give change for a banknote.

573 is known as the Konami number.

@Kewpie said
573 is known as the Konami number.

575 is a palindrome

576 Emanuela is an asteroid orbiting the Sun.

@Kewpie said
576 Emanuela is an asteroid orbiting the Sun.

578 Happelia is a minor planet orbiting the Sun.

579 is an ascending sequence of even numbers.

@Kewpie said
579 is an ascending sequence of even numbers.

Mozart's Clarinet Quintet, K. 581, was written in 1789.

@Kewpie said
Mozart's Clarinet Quintet, K. 581, was written in 1789.

YouTube

To multiply a 2-digit number by 11 mentally, separate the two digits and insert their total. Example: 53 x 11 is 5-8-3.

Well, 584 surprisingly doesn't suggest colors to me, although in other contexts I might have read 8 as black and 5 and 4 as orange and yellow (not sure which is assigned to which; for me, 9 is brown, 2 is blue, 3 is red and I don't know about the others -- but it's not a complete or stable scheme.)

In one Tarot-numerology scheme, 584 could be read as conflict-infinity-stability.

585 is an American barn, i.e. a palindrome.