# 2220

The numbers with a 20 subscript use Base 20 Vigesimal notation.

For more familiar numbers: See Forty-Two in Base 10 Decimal

## Nearby Numbers

Positive, nonzero integers within three units

39
1j20
Thirty-Nine in Base 20 Vigesimal
40
2020
Forty in Base 20 Vigesimal
41
2120
Forty-One in Base 20 Vigesimal
43
2320
Forty-Three in Base 20 Vigesimal
44
2420
Forty-Four in Base 20 Vigesimal
45
2520
Forty-Five in Base 20 Vigesimal

## Scientific Notation

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

## Reciprocal

A number multiplied with its reciprocal is one.

### `0.09a9a9a9a9a9a920`

The reciprocal of 42 in Base 20 Vigesimal.

## Palindrome?

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

The number 2220 is a palindrome.

## Not A Prime Number

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

Forty-two is a composite number with 8 total factors (including 1 and itself).   See primes in Base 20 Vigesimal

## A Composite

Composites have more than just these two factors.

Forty-two is a composite number with 8 total factors (including 1 and itself).

## Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number forty-two has the following 3 prime factors:

2
220
Two in Base 20 Vigesimal
3
320
Three in Base 20 Vigesimal
7
720
Seven in Base 20 Vigesimal

## Prime Factorization

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

## Base Conversions

The number forty-two in 35 different bases