The Number

242821

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

In Base 18 Octodecimal Is

25b8118

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

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

Nearby Numbers

Positive, nonzero integers within three units

242818
25b7g18
Two Hundred and Forty-Two Thousand Eight Hundred and Eightteen in Base 18 Octodecimal
242819
25b7h18
Two Hundred and Forty-Two Thousand Eight Hundred and Nineteen in Base 18 Octodecimal
242820
25b8018
Two Hundred and Forty-Two Thousand Eight Hundred and Twenty in Base 18 Octodecimal
242822
25b8218
Two Hundred and Forty-Two Thousand Eight Hundred and Twenty-Two in Base 18 Octodecimal
242823
25b8318
Two Hundred and Forty-Two Thousand Eight Hundred and Twenty-Three in Base 18 Octodecimal
242824
25b8418
Two Hundred and Forty-Two Thousand Eight 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.

2.42821e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00007e1512384h30318

The reciprocal of 242821 in Base 18 Octodecimal.

Palindrome?

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

The number 25b8118 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 forty-two thousand eight hundred and twenty-one 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 forty-two thousand eight hundred and twenty-one 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 forty-two thousand eight hundred and twenty-one has the following 2 prime factors:

43
2718
Forty-Three in Base 18 Octodecimal
5647
h7d18
Five Thousand 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

27181 · h7d181 = 25b8118

Base Conversions

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