The Number

212821

Two Hundred and Twelve Thousand Eight Hundred and Twenty-One

In Base 21 Unovigesimal Is

11kc721

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

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

Nearby Numbers

Positive, nonzero integers within three units

212818
11kc421
Two Hundred and Twelve Thousand Eight Hundred and Eightteen in Base 21 Unovigesimal
212819
11kc521
Two Hundred and Twelve Thousand Eight Hundred and Nineteen in Base 21 Unovigesimal
212820
11kc621
Two Hundred and Twelve Thousand Eight Hundred and Twenty in Base 21 Unovigesimal
212822
11kc821
Two Hundred and Twelve Thousand Eight Hundred and Twenty-Two in Base 21 Unovigesimal
212823
11kc921
Two Hundred and Twelve Thousand Eight Hundred and Twenty-Three in Base 21 Unovigesimal
212824
11kca21
Two Hundred and Twelve Thousand Eight Hundred and Twenty-Four in Base 21 Unovigesimal

Scientific Notation

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

2.12821e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000j3kj9ejgc6i21

The reciprocal of 212821 in Base 21 Unovigesimal.

Palindrome?

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

The number 11kc721 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 twelve thousand eight hundred and twenty-one is a composite number with 4 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 twelve 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 twelve thousand eight hundred and twenty-one has the following 2 prime factors:

7
721
Seven in Base 21 Unovigesimal
30403
35jg21
Thirty Thousand Four Hundred and Three in Base 21 Unovigesimal

Prime Factorization

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

7211 · 35jg211 = 11kc721

Base Conversions

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