The Number

221806

Two Hundred and Twenty-One Thousand Eight Hundred and Six

In Base 18 Octodecimal Is

220aa18

The numbers with a 18 subscript use Base 18 Octodecimal notation.

For more familiar numbers: See Two Hundred and Twenty-One Thousand Eight Hundred and Six in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

221803
220a718
Two Hundred and Twenty-One Thousand Eight Hundred and Three in Base 18 Octodecimal
221804
220a818
Two Hundred and Twenty-One Thousand Eight Hundred and Four in Base 18 Octodecimal
221805
220a918
Two Hundred and Twenty-One Thousand Eight Hundred and Five in Base 18 Octodecimal
221807
220ab18
Two Hundred and Twenty-One Thousand Eight Hundred and Seven in Base 18 Octodecimal
221808
220ac18
Two Hundred and Twenty-One Thousand Eight Hundred and Eight in Base 18 Octodecimal
221809
220ad18
Two Hundred and Twenty-One Thousand Eight Hundred and Nine in Base 18 Octodecimal

Scientific Notation

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

2.21806e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00008962fec272e9b18

The reciprocal of 221806 in Base 18 Octodecimal.

Palindrome?

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

The number 220aa18 is not 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-one thousand eight hundred and six is a composite number with 16 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Two hundred and twenty-one thousand eight hundred and six is a composite number with 16 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-one thousand eight hundred and six has the following 4 prime factors:

2
218
Two in Base 18 Octodecimal
13
d18
Thirteen in Base 18 Octodecimal
19
1118
Nineteen in Base 18 Octodecimal
449
16h18
Four Hundred and Forty-Nine in Base 18 Octodecimal

Prime Factorization

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

2181 · d181 · 11181 · 16h181 = 220aa18

Base Conversions

The number two hundred and twenty-one thousand eight hundred and six in 35 different bases