Free 1089 Number Trick Calculator - Demonstrates the 1089 number trick for a 3 digit number that you enter

Free Accuracy and Precision Calculator - Given an integer or decimal, this determines the precision and accuracy (scale)

Free Automorphic Number Calculator - This calculator determines the nth automorphic number

Free Babylonian Method Calculator - Determines the square root of a number using the Babylonian Method.

Free Compound Interest and Annuity Table Calculator - Given an interest rate (i), number of periods to display (n), and number of digits to round (r), this calculator produces a compound interest table. It shows the values for the following 4 compound interest annuity functions from time 1 to (n) rounded to (r) digits:
vⁿ
d
(1 + i)ⁿ
a_n|
s_n|
ä_n|i
s_n|i
Force of Interest δⁿ

Free Dewey Decimal System Classification Calculator - Given a 3 digit code, this will determine the class, division, and section of the library book using the Dewey Decimal System.

Free Digit Problems Calculator - Determines how many (n) digit numbers can be formed based on a variety of criteria.

Free Digit Product Calculator - Calculates a digit product for a number.

Free Digit Sum Calculator - Calculates a digit sum and reduced digit sum for a number.

Free Divisibility Calculator - Shows the divisibility of a number by seeing if it is divisible by (2,3,4,5,6,7,8,9,10,11)

Free Expanded Notation Calculator - Writes the expanded notation for a number.

Exam answers and Study Guide for the Google Digital Sales Exam

Largest Possible Number Calculator - Calculates the largest possible number from a given set of digits

Free Modular Exponentiation and Successive Squaring Calculator - Solves xⁿ mod p using the following methods:
* Modular Exponentiation
* Successive Squaring

Free Natural Logarithm Table Calculator - Generates a natural logarithm table for the first (n) numbers rounded to (r) digits

Free Number Property Calculator - This calculator determines if an integer you entered has any of the following properties:
* Even Numbers or Odd Numbers (Parity Function or even-odd numbers)
* Evil Numbers or Odious Numbers
* Perfect Numbers, Abundant Numbers, or Deficient Numbers
* Triangular Numbers
* Prime Numbers or Composite Numbers
* Automorphic (Curious)
* Undulating Numbers
* Square Numbers
* Cube Numbers
* Palindrome Numbers
* Repunit Numbers
* Apocalyptic Power
* Pentagonal
* Tetrahedral (Pyramidal)
* Narcissistic (Plus Perfect)
* Catalan
* Repunit

Free Odd Numbers Calculator - Shows a set amount of odd numbers and cumulative sum

Free Rounding to Decimal Places Calculator - Rounds a number to a select number of decimal places

Free Significant Figures Calculator - Rounds a number to a select number of significant figures

Free Square Root Table Calculator - Generates a square root table for the first (n) numbers rounded to (r) digits

Free Sum of the Years Digits (SOYD) Depreciation Calculator - Solves for Depreciation Charge, Asset Value, and Book Value using the Sum of the Years Digits Method

Free Truncate Calculator - Truncates a number to a specified number of decimal places. Truncates decimals.