The Number

220

Two Hundred and Twenty

In Base 21 Unovigesimal Is

aa21

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

For more familiar numbers: See Two Hundred and Twenty in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

217
a721
Two Hundred and Seventeen in Base 21 Unovigesimal
218
a821
Two Hundred and Eightteen in Base 21 Unovigesimal
219
a921
Two Hundred and Nineteen in Base 21 Unovigesimal
221
ab21
Two Hundred and Twenty-One in Base 21 Unovigesimal
222
ac21
Two Hundred and Twenty-Two in Base 21 Unovigesimal
223
ad21
Two Hundred and Twenty-Three in Base 21 Unovigesimal

Scientific Notation

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

2.20e2

Reciprocal

A number multiplied with its reciprocal is one.

0.02020202020221

The reciprocal of 220 in Base 21 Unovigesimal.

Palindrome?

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

The number aa21 is a palindrome.

Not A Prime Number

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

Two hundred and twenty is a composite number with 12 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Two hundred and twenty is a composite number with 12 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 two hundred and twenty has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal

Prime Factorization

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

2212 · 5211 · b211 = aa21

Base Conversions

The number two hundred and twenty in 35 different bases