Number

-1

Negative
Odd
Perfect square
Perfect cube
1 digit

-1 is an odd 1-digit integer and the negative of 1. Its digital root is 1.

Number properties

ParityOddnot divisible by 2

SignNegative

Absolute value1

Digit count1

Digit sum1

Digital root1repeated digit sum

PalindromicYesreads the same backwards

Perfect squareYes, 1²

Perfect cubeYes, -1³

Arithmetic

Previous number-2

Next number0

Double-2

Half-0.5

Square1

Cube-1

Cube root-1

Negation1

Reciprocal-1≈

Representations

Decimal-1

Binary11 bits

Octal1

Hexadecimal1

Base 361

In wordsminus one

Ordinalminus first

Scientific notation-1 × 10^0

Engineering notation-1

Nearest landmarks

Next prime2+3

Nearest square below1

Nearest square above4

Powers & multiples

-1 to the power 21

-1 to the power 3-1

-1 to the power 41

-1 to the power 5-1

First ten multiples-1, -2, -3, -4, -5, -6, -7, -8, -9, -10

Powers of twoExactly 2^0

Divisibility tests

Divisible by 2No, remainder 1

Divisible by 3No, remainder 1

Divisible by 4No, remainder 1

Divisible by 5No, remainder 1

Divisible by 6No, remainder 1

Divisible by 7No, remainder 1

Divisible by 8No, remainder 1

Divisible by 9No, remainder 1

Divisible by 10No, remainder 1

Divisible by 11No, remainder 1

Divisible by 12No, remainder 1

Divisible by 100No, remainder 1

As a percentage & fraction

As a percentage-100%

-1% as a decimal-0.01

-1% of 100-1

-1% of 1,000-10

As a fraction of 100-1/100

Keep nerding

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Neighbouring numbers

Derived from -1

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