Your number, one digit away
One digit away
One digit, +135 points.
Your number
421,201
Extreme · Top 0.72%
Position 1: 4 → 3 · +135 points.
Gained: Triangular number, Digit sum 9, Descending segment, Harshad number, Happy number.
Lost: Perfect square, Digit sum 10.
53 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.