The Number

221428

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

In Base 18 Octodecimal Is

21h7a18

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

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

Nearby Numbers

Positive, nonzero integers within three units

221425
21h7718
Two Hundred and Twenty-One Thousand Four Hundred and Twenty-Five in Base 18 Octodecimal
221426
21h7818
Two Hundred and Twenty-One Thousand Four Hundred and Twenty-Six in Base 18 Octodecimal
221427
21h7918
Two Hundred and Twenty-One Thousand Four Hundred and Twenty-Seven in Base 18 Octodecimal
221429
21h7b18
Two Hundred and Twenty-One Thousand Four Hundred and Twenty-Nine in Base 18 Octodecimal
221430
21h7c18
Two Hundred and Twenty-One Thousand Four Hundred and Thirty in Base 18 Octodecimal
221431
21h7d18
Two Hundred and Twenty-One Thousand Four 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.

2.21428e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000089afc85b7h85618

The reciprocal of 221428 in Base 18 Octodecimal.

Palindrome?

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

The number 21h7a18 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 four hundred and twenty-eight is a composite number with 12 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 four hundred and twenty-eight is a composite number with 12 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 four hundred and twenty-eight has the following 3 prime factors:

2
218
Two in Base 18 Octodecimal
197
ah18
One Hundred and Ninety-Seven in Base 18 Octodecimal
281
fb18
Two Hundred and Eighty-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

2182 · ah181 · fb181 = 21h7a18

Base Conversions

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