The Number

20821

Twenty Thousand Eight Hundred and Twenty-One

In Base 12 Duodecimal Is

1007112

The numbers with a 12 subscript use Base 12 Duodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

20818
1006a12
Twenty Thousand Eight Hundred and Eightteen in Base 12 Duodecimal
20819
1006b12
Twenty Thousand Eight Hundred and Nineteen in Base 12 Duodecimal
20820
1007012
Twenty Thousand Eight Hundred and Twenty in Base 12 Duodecimal
20822
1007212
Twenty Thousand Eight Hundred and Twenty-Two in Base 12 Duodecimal
20823
1007312
Twenty Thousand Eight Hundred and Twenty-Three in Base 12 Duodecimal
20824
1007412
Twenty Thousand Eight Hundred and Twenty-Four in Base 12 Duodecimal

Scientific Notation

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

2.0821e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000bb4b41b7607a14412

The reciprocal of 20821 in Base 12 Duodecimal.

Palindrome?

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

The number 1007112 is not a palindrome.

Not A Prime Number

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

Twenty thousand eight hundred and twenty-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 12 Duodecimal

A Composite

Composites have more than just these two factors.

Twenty 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 twenty thousand eight hundred and twenty-one has the following 2 prime factors:

47
3b12
Forty-Seven in Base 12 Duodecimal
443
30b12
Four Hundred and Forty-Three in Base 12 Duodecimal

Prime Factorization

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

3b121 · 30b121 = 1007112

Base Conversions

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