✳ Sandbox

One digit changes everything.

Change a digit and watch the patterns and score respond.

Integers from 0 to 1,000,000

Digits6

Use ↑ ↓ to change a digit, ← → to move, or type a digit. Leading zeros are excluded.

Best single-digit improvement

No one-digit change improves this score. Try changing two digits.

Number
524,287
Singular
Rarity score625
Global percentileTop 0.086%
Detected traits7

The percentile compares this score with every supported number. Each exact number is equally likely on a random roll.

CompareSandbox

Number DNA

524287

Digit profile

Digits
6
Distinct digits
5
Digit sum
28
Odd / even digits
2 / 4
Digital root
1

Mathematical properties

Divisors
2
Prime factorization
524,287
Binary
1111111111111111111
Hexadecimal
7FFFF

What makes it unusual

7 Detected traits

Binary repunit

Encodings
+315

The binary representation has at least two digits, all 1.

1 in 55,556

Digit sum 28

Digit arithmetic
+84
5.47%

Prime number

Number theory
+73

A number greater than 1 with exactly two positive divisors.

7.85%

Binary palindrome

Encodings
+63

At least two binary digits read the same in reverse.

0.2%

Zigzag digits

Sequences
+57

At least four digits strictly alternate between rising and falling.

13.64%

5 distinct digits

Repetition
+24
43.55%

One repeated digit

Repetition
+8

Exactly one pair; every other digit appears once. Two-digit repdigits are excluded.

45.77%
How scoring works