Interestingly both 2025 and 3025 have another cool property: if you "split" the digits down the middle and add them together, you get the square root of the original. 20+25=45 30+25=55 The next year this happens for is 9801: 98+01=99, and 99^2=9,801 (but 9801 sadly isn't one of those cubey sums)
January 3, 2025 at 1:05 AM
Interestingly both 2025 and 3025 have another cool property: if you "split" the digits down the middle and add them together, you get the square root of the original. 20+25=45 30+25=55 The next year this happens for is 9801: 98+01=99, and 99^2=9,801 (but 9801 sadly isn't one of those cubey sums)