The Number

221921

Two Hundred and Twenty-One Thousand Nine Hundred and Twenty-One

In Base 18 Octodecimal Is

220gh18

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

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

Nearby Numbers

Positive, nonzero integers within three units

221918
220ge18
Two Hundred and Twenty-One Thousand Nine Hundred and Eightteen in Base 18 Octodecimal
221919
220gf18
Two Hundred and Twenty-One Thousand Nine Hundred and Nineteen in Base 18 Octodecimal
221920
220gg18
Two Hundred and Twenty-One Thousand Nine Hundred and Twenty in Base 18 Octodecimal
221922
220h018
Two Hundred and Twenty-One Thousand Nine Hundred and Twenty-Two in Base 18 Octodecimal
221923
220h118
Two Hundred and Twenty-One Thousand Nine Hundred and Twenty-Three in Base 18 Octodecimal
221924
220h218
Two Hundred and Twenty-One Thousand Nine Hundred and Twenty-Four in Base 18 Octodecimal

Scientific Notation

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

2.21921e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000894d270c9edgh18

The reciprocal of 221921 in Base 18 Octodecimal.

Palindrome?

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

The number 220gh18 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 nine hundred and twenty-one is a composite number with 8 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 nine hundred and twenty-one 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 two hundred and twenty-one thousand nine hundred and twenty-one has the following 2 prime factors:

7
718
Seven in Base 18 Octodecimal
647
1hh18
Six Hundred and Forty-Seven in Base 18 Octodecimal

Prime Factorization

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

7183 · 1hh181 = 220gh18

Base Conversions

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