Numbers /40

How rare is 40?

40 scores 707 and sits in the Singular tier — 1 in 2,041 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.

Number
40
Singular
Rarity Score
707
Global Percentile
Top 0.05%
Same-length rank
Top 48.9%
Among 90 2-digit numbers
Traits Detected
4

RNGdle.net’s own rarity score. Top 0.05% 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 2 digits, including ties. How this differs from EP · Badge guide

Number DNA
40
Lab Observations · Descriptive Only
2 digitsEven number1 zeroFirst > last0, 4 appear once

These notes make the number easy to read, but they add no score unless a separately counted rarity signal appears below.

Digit Profile
Length2 digits
Unique digits2
Digit sum4
Odd / even split0 / 2
Digital root4
Mathematical Properties
Composite number
8 divisors
Not a perfect square
Not a perfect cube
Not a palindrome
Rarity Drivers
4 traits detected
Two-digit numberSingular

One of only 90 two-digit numbers in range.

Range · signal frequency

+269
1 in 11,111
Digit sum 4Singular

This number's digits add up to an uncommon total.

Arithmetic · signal frequency

+259
1 in 7,937
2 distinct digitsExtreme

This number uses an uncommon count of distinct digits.

Repetition · signal frequency

+155
1 in 217
Harshad numberRare

Divisible by the sum of its digits.

Arithmetic · signal frequency

+24
9.54%
Rarity Explanation

Strongest signal: Two-digit number. It appears in 90 supported numbers and contributes +269 after correlation decay.

Why is 40 unusual? Only 0.05% 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

One digit away

One digit, +341 points.

Your number

40

Singular · Top 0.05%

Best one-digit neighbour

44

Singular · Top <0.01%

Position 2: 0 → 4 · +341 points.

Gained: All digits identical, Digit sum 8, Palindrome, 1 distinct digit, Happy number.

17 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.

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Shared patterns

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Patterns in this number

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