The Number

21238

Twenty-One Thousand Two Hundred and Thirty-Eight

In Base 28 Octovigesimal Is

r2e28

The numbers with a 28 subscript use Base 28 Octovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21235
r2b28
Twenty-One Thousand Two Hundred and Thirty-Five in Base 28 Octovigesimal
21236
r2c28
Twenty-One Thousand Two Hundred and Thirty-Six in Base 28 Octovigesimal
21237
r2d28
Twenty-One Thousand Two Hundred and Thirty-Seven in Base 28 Octovigesimal
21239
r2f28
Twenty-One Thousand Two Hundred and Thirty-Nine in Base 28 Octovigesimal
21240
r2g28
Twenty-One Thousand Two Hundred and Forty in Base 28 Octovigesimal
21241
r2h28
Twenty-One Thousand Two Hundred and Forty-One in Base 28 Octovigesimal

Scientific Notation

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

2.1238e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0010qa032n209728

The reciprocal of 21238 in Base 28 Octovigesimal.

Palindrome?

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

The number r2e28 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Twenty-one thousand two hundred and thirty-eight is a composite number with 16 total factors (including 1 and itself).   See primes in Base 28 Octovigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand two hundred and thirty-eight is a composite number with 16 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 twenty-one thousand two hundred and thirty-eight has the following 4 prime factors:

2
228
Two in Base 28 Octovigesimal
7
728
Seven in Base 28 Octovigesimal
37
1928
Thirty-Seven in Base 28 Octovigesimal
41
1d28
Forty-One in Base 28 Octovigesimal

Prime Factorization

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

2281 · 7281 · 19281 · 1d281 = r2e28

Base Conversions

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