The Number

221528

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

In Base 18 Octodecimal Is

21hd218

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

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

Nearby Numbers

Positive, nonzero integers within three units

221525
21hch18
Two Hundred and Twenty-One Thousand Five Hundred and Twenty-Five in Base 18 Octodecimal
221526
21hd018
Two Hundred and Twenty-One Thousand Five Hundred and Twenty-Six in Base 18 Octodecimal
221527
21hd118
Two Hundred and Twenty-One Thousand Five Hundred and Twenty-Seven in Base 18 Octodecimal
221529
21hd318
Two Hundred and Twenty-One Thousand Five Hundred and Twenty-Nine in Base 18 Octodecimal
221530
21hd418
Two Hundred and Twenty-One Thousand Five Hundred and Thirty in Base 18 Octodecimal
221531
21hd518
Two Hundred and Twenty-One Thousand Five Hundred and Thirty-One in Base 18 Octodecimal

Scientific Notation

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

2.21528e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000899b417hh9hh18

The reciprocal of 221528 in Base 18 Octodecimal.

Palindrome?

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

The number 21hd218 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 five hundred and twenty-eight 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 five hundred and twenty-eight 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 five hundred and twenty-eight has the following 2 prime factors:

2
218
Two in Base 18 Octodecimal
27691
4d8718
Twenty-Seven Thousand Six Hundred and Ninety-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

2183 · 4d87181 = 21hd218

Base Conversions

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