Numbers /10,101
How rare is 10,101?
10,101 scores 988 and sits in the Singular tier — 1 in 20,000 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 <0.01% means that proportion of supported numbers scores at least this high. Every exact number has the same chance of being rolled. 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
Two digits alternating with period two, like 5252.
Sequence · signal frequency
Reads the same forwards and backwards.
Symmetry · signal frequency
A number of four or more digits built from just two digits.
Repetition · signal frequency
This number uses an uncommon count of distinct digits.
Repetition · signal frequency
Digits strictly alternate between odd and even.
Sequence · signal frequency
Divisible by the sum of its digits.
Arithmetic · signal frequency
Every comparison strictly alternates between rising and falling.
Sequence · signal frequency
A single digit appears exactly three times.
Repetition · signal frequency
Strongest signal: Digit sum 3. It appears in 56 supported numbers and contributes +282 after correlation decay.
Why is 10,101 unusual? Only <0.01% of the 1,000,001 supported numbers receive an equal or higher rarity score. This number falls in the Singular 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
Patterns in this number
Each of these has its own page explaining how common the pattern is and why.
Triple Digits
A triple contains exactly three copies of one digit, such as 8188 or 636306. It is the most common form of strong repetition — and the first one most people notice.
Numbers Built From Two Digits
These numbers use only two different digits across four or more places, like 9119 or 303033. The whole number is drawn from a two-symbol alphabet.
Palindrome Numbers
A palindrome reads the same forwards and backwards, like 12321 or 909. They are one of the most recognizable patterns a number can have.
ABAB Pattern Numbers
Two digits taking strict turns: 5252, 8080, 393939. The pattern repeats with period two from the first digit to the last.
Alternating Odd and Even Digits
Odd, even, odd, even — or the reverse — all the way through, as in 385274 or 1614. The digits themselves are free; only their parity is constrained.
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.
Harshad Numbers
A Harshad — or Niven — number is divisible by the sum of its own digits. 18 works because 1 + 8 = 9 and 18 ÷ 9 = 2.