Nearby Numbers

Positive, nonzero integers within three units

19

Nineteen

20

Twenty

21

Twenty-One

23

Twenty-Three

24

Twenty-Four

25

Twenty-Five

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

2.2e1

Reciprocal

A number multiplied with its reciprocal is one.

0.045454545454545456

The reciprocal of 22.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 22 is a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Twenty-two is a composite number with 4 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Twenty-two is a composite number with 4 total factors (including 1 and itself).

Prime Factors

2

Two

11

Eleven

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

21 · 111 = 22

Base Conversions

The number twenty-two in 35 different bases