The Number

2820

Two Thousand Eight Hundred and Twenty

In Base 11 Undecimal Is

213411

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

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

Nearby Numbers

Positive, nonzero integers within three units

2817
213111
Two Thousand Eight Hundred and Seventeen in Base 11 Undecimal
2818
213211
Two Thousand Eight Hundred and Eightteen in Base 11 Undecimal
2819
213311
Two Thousand Eight Hundred and Nineteen in Base 11 Undecimal
2821
213511
Two Thousand Eight Hundred and Twenty-One in Base 11 Undecimal
2822
213611
Two Thousand Eight Hundred and Twenty-Two in Base 11 Undecimal
2823
213711
Two Thousand Eight Hundred and Twenty-Three in Base 11 Undecimal

Scientific Notation

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

2.820e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0005212387330a3826611

The reciprocal of 2820 in Base 11 Undecimal.

Palindrome?

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

The number 213411 is not a palindrome.

Not A Prime Number

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

Two thousand eight hundred and twenty is a composite number with 24 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

Two thousand eight hundred and twenty is a composite number with 24 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 thousand eight hundred and twenty has the following 4 prime factors:

2
211
Two in Base 11 Undecimal
3
311
Three in Base 11 Undecimal
5
511
Five in Base 11 Undecimal
47
4311
Forty-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

2112 · 3111 · 5111 · 43111 = 213411

Base Conversions

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