Numbers /828,828
How rare is 828,828?
828,828 scores 991 and sits in the Singular tier — 1 in 20,408 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.
A three-digit block repeated, like 146146.
Sequence · signal frequency
A sum 1 + 2 + … + k for some k.
Factorization · 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's digits add up to an uncommon total.
Arithmetic · signal frequency
Has 100 or more divisors.
Factorization · signal frequency
This number uses an uncommon count of distinct digits.
Repetition · signal frequency
Divisible by the sum of its digits.
Arithmetic · signal frequency
A single digit appears exactly four times.
Repetition · signal frequency
Strongest signal: ABCABC pattern. It appears in 891 supported numbers and contributes +203 after correlation decay.
Why is 828,828 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.
Quadruple Digits
A quadruple number contains exactly four copies of one digit, like 4441 or 727772. Four of a kind is the point where repetition stops looking like coincidence.
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.
ABCABC Pattern Numbers
A three-digit block written twice: 146146, 707707, 989989. Every six-digit number of this form is a three-digit number multiplied by 1001.
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.
Triangular Numbers
A triangular number counts the dots in a triangle: 1, 3, 6, 10, 15, 21 — each one the running total 1 + 2 + … + k.
Highly Divisible Numbers
These numbers have at least a hundred distinct divisors — the opposite extreme from primes, which have exactly two.