Numbers /21,989
How rare is 21,989?
21,989 scores 226 and sits in the Distinct tier — 21.10% of all supported numbers score this high or higher. Everything below is computed from a complete analysis of all 1,000,001 numbers in range.
RNGdle.net’s own rarity score. Top 21.1% means that proportion of supported numbers scores at least this high. Every exact number has the same chance of being rolled. Same-length rank keeps the score and compares only numbers with 5 digits, including ties. How this differs from EP · Badge guide
These notes make the number easy to read, but they add no score unless a separately counted rarity signal appears below.
This number's digits add up to an uncommon total.
Arithmetic · signal frequency
Every comparison strictly alternates between rising and falling.
Sequence · signal frequency
The product of exactly two primes.
Factorization · signal frequency
This number uses an uncommon count of distinct digits.
Repetition · signal frequency
Exactly one digit appears twice.
Repetition · signal frequency
Strongest signal: Digit sum 29. It appears in 53,262 supported numbers and contributes +85 after correlation decay.
Why is 21,989 unusual? Only 21.1% of the 1,000,001 supported numbers receive an equal or higher rarity score. This number falls in the Distinct tier. Scoring is grounded in the exact frequency of each detected trait — rarer traits carry more information and contribute more to the score.
Algorithm version 1.1.0
One digit away
One change could reach Exceptional.
Your number
21,989
Distinct · Top 21.1%
Position 2: 1 → 2 · +128 points.
Gained: Binary palindrome, Digit sum 30, 3 distinct digits, Double pair.
44 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.
Explore & share this near miss →Similar interesting numbers
Explore a shared pattern, a comparable score, or a mathematical relationship. Every link explains its connection to 21,989.
Shared patterns
Same length, nearby scores
Patterns in this number
Each of these has its own page explaining how common the pattern is and why.
Numbers With One Repeated Digit
The mildest form of repetition: exactly one digit appears twice, and every other digit is distinct — as in 1231 or 405067.
Zigzag Digit Numbers
Every comparison changes direction: up, down, up, down — or the reverse. In 792619 the path is 7 < 9 > 2 < 6 > 1 < 9.
Semiprime Numbers
A semiprime is a product of exactly two primes, counted with multiplicity — 15 = 3 × 5, and 49 = 7 × 7 counts too.