The Number

221842

Two Hundred and Twenty-One Thousand Eight Hundred and Forty-Two

In Base 18 Octodecimal Is

220ca18

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 Forty-Two in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

221839
220c718
Two Hundred and Twenty-One Thousand Eight Hundred and Thirty-Nine in Base 18 Octodecimal
221840
220c818
Two Hundred and Twenty-One Thousand Eight Hundred and Forty in Base 18 Octodecimal
221841
220c918
Two Hundred and Twenty-One Thousand Eight Hundred and Forty-One in Base 18 Octodecimal
221843
220cb18
Two Hundred and Twenty-One Thousand Eight Hundred and Forty-Three in Base 18 Octodecimal
221844
220cc18
Two Hundred and Twenty-One Thousand Eight Hundred and Forty-Four in Base 18 Octodecimal
221845
220cd18
Two Hundred and Twenty-One Thousand Eight Hundred and Forty-Five in Base 18 Octodecimal

Scientific Notation

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

2.21842e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000895cec81c308118

The reciprocal of 221842 in Base 18 Octodecimal.

Palindrome?

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

The number 220ca18 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 forty-two is a composite number with 4 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 forty-two is a composite number with 4 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 forty-two has the following 2 prime factors:

2
218
Two in Base 18 Octodecimal
110921
1106518
One Hundred and Ten Thousand Nine Hundred and Twenty-One 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 · 11065181 = 220ca18

Base Conversions

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