Comment by razi (razi-syed) on Fun math facts about 2023 · 2023-01-02T00:21:27.319Z · LW · GW

2023 is the sum of the squares of the first five prime numbers (2^2 + 3^2 + 5^2 + 7^2 + 11^2 = 2023).

2023 is a deficient number, meaning the sum of its proper divisors (1, 7, 11, 41, 77, 121, 187, 287) is less than 2023.

2023 is the hypotenuse of a Pythagorean triple (1875, 1750, 2023).

2023 is the sum of the first 25 positive integers (1 + 2 + 3 + ... + 25 = 2023) AND

2023 is the sum of the first 50 odd integers (1 + 3 + 5 + ... + 99 = 2023).

2023 is the 500th number in the Fibonacci sequence.