Inspect every digit of an integer
Paste a decimal integer to see its digit count, sum, digital root, and a frequency table from 0 to 9. For example, -1002933 has seven digits, a digit sum of 18, and a digital root of 9.
Leading zeros and signs
The optional plus or minus sign is ignored. Leading zeros are preserved in the digit count and frequency table: 0007 has four digits and a digit sum of 7. The digital root repeatedly sums digits until one digit remains; an all-zero input has digital root 0.
Exact results and input limits
Up to 100,000 decimal digits are processed as text, so large integers never lose precision. Decimal points, separators, scientific notation, and internal spaces are rejected. Surrounding whitespace is ignored. Calculations run locally in your browser.