The Number

221855

Two Hundred and Twenty-One Thousand Eight Hundred and Fifty-Five

In Base 18 Octodecimal Is

220d518

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 Fifty-Five in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

221852
220d218
Two Hundred and Twenty-One Thousand Eight Hundred and Fifty-Two in Base 18 Octodecimal
221853
220d318
Two Hundred and Twenty-One Thousand Eight Hundred and Fifty-Three in Base 18 Octodecimal
221854
220d418
Two Hundred and Twenty-One Thousand Eight Hundred and Fifty-Four in Base 18 Octodecimal
221856
220d618
Two Hundred and Twenty-One Thousand Eight Hundred and Fifty-Six in Base 18 Octodecimal
221857
220d718
Two Hundred and Twenty-One Thousand Eight Hundred and Fifty-Seven in Base 18 Octodecimal
221858
220d818
Two Hundred and Twenty-One Thousand Eight Hundred and Fifty-Eight in Base 18 Octodecimal

Scientific Notation

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

2.21855e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00008959g566g9a8f18

The reciprocal of 221855 in Base 18 Octodecimal.

Palindrome?

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

The number 220d518 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 fifty-five 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 fifty-five 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 fifty-five has the following 2 prime factors:

5
518
Five in Base 18 Octodecimal
44371
7ah118
Forty-Four Thousand Three Hundred and Seventy-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

5181 · 7ah1181 = 220d518

Base Conversions

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