The Number

218728

Two Hundred and Eightteen Thousand Seven Hundred and Twenty-Eight

In Base 21 Unovigesimal Is

12ckd21

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

218725
12cka21
Two Hundred and Eightteen Thousand Seven Hundred and Twenty-Five in Base 21 Unovigesimal
218726
12ckb21
Two Hundred and Eightteen Thousand Seven Hundred and Twenty-Six in Base 21 Unovigesimal
218727
12ckc21
Two Hundred and Eightteen Thousand Seven Hundred and Twenty-Seven in Base 21 Unovigesimal
218729
12cke21
Two Hundred and Eightteen Thousand Seven Hundred and Twenty-Nine in Base 21 Unovigesimal
218730
12ckf21
Two Hundred and Eightteen Thousand Seven Hundred and Thirty in Base 21 Unovigesimal
218731
12ckg21
Two Hundred and Eightteen Thousand Seven Hundred and Thirty-One in Base 21 Unovigesimal

Scientific Notation

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

2.18728e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000ie27ieik935521

The reciprocal of 218728 in Base 21 Unovigesimal.

Palindrome?

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

The number 12ckd21 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 eightteen thousand seven hundred and twenty-eight is a composite number with 16 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Two hundred and eightteen thousand seven hundred and twenty-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 two hundred and eightteen thousand seven hundred and twenty-eight has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
19
j21
Nineteen in Base 21 Unovigesimal
1439
35b21
One Thousand Four Hundred and Thirty-Nine in Base 21 Unovigesimal

Prime Factorization

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

2213 · j211 · 35b211 = 12ckd21

Base Conversions

The number two hundred and eightteen thousand seven hundred and twenty-eight in 35 different bases