The Number

30821

Thirty Thousand Eight Hundred and Twenty-One

In Base 11 Undecimal Is

2117a11

The numbers with a 11 subscript use Base 11 Undecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

30818
2117711
Thirty Thousand Eight Hundred and Eightteen in Base 11 Undecimal
30819
2117811
Thirty Thousand Eight Hundred and Nineteen in Base 11 Undecimal
30820
2117911
Thirty Thousand Eight Hundred and Twenty in Base 11 Undecimal
30822
2118011
Thirty Thousand Eight Hundred and Twenty-Two in Base 11 Undecimal
30823
2118111
Thirty Thousand Eight Hundred and Twenty-Three in Base 11 Undecimal
30824
2118211
Thirty Thousand Eight Hundred and Twenty-Four in Base 11 Undecimal

Scientific Notation

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

3.0821e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00005252a643346979a911

The reciprocal of 30821 in Base 11 Undecimal.

Palindrome?

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

The number 2117a11 is not a palindrome.

Not A Prime Number

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

Thirty thousand eight hundred and twenty-one is a composite number with 12 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

Thirty thousand eight hundred and twenty-one 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 thirty thousand eight hundred and twenty-one has the following 3 prime factors:

7
711
Seven in Base 11 Undecimal
17
1611
Seventeen in Base 11 Undecimal
37
3411
Thirty-Seven in Base 11 Undecimal

Prime Factorization

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

7112 · 16111 · 34111 = 2117a11

Base Conversions

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