Your number, one digit away
One digit away
One change could reach Extreme.
Your number
40,021
Rare · Top 6.33%
Position 2: 0 → 2 · +131 points.
Gained: Binary palindrome, Digit sum 9, Harshad number.
Lost: Digit sum 7, Semiprime.
44 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.