The Number

12820

Twelve Thousand Eight Hundred and Twenty

In Base 18 Octodecimal Is

23a418

The numbers with a 18 subscript use Base 18 Octodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

12817
23a118
Twelve Thousand Eight Hundred and Seventeen in Base 18 Octodecimal
12818
23a218
Twelve Thousand Eight Hundred and Eightteen in Base 18 Octodecimal
12819
23a318
Twelve Thousand Eight Hundred and Nineteen in Base 18 Octodecimal
12821
23a518
Twelve Thousand Eight Hundred and Twenty-One in Base 18 Octodecimal
12822
23a618
Twelve Thousand Eight Hundred and Twenty-Two in Base 18 Octodecimal
12823
23a718
Twelve Thousand Eight Hundred and Twenty-Three in Base 18 Octodecimal

Scientific Notation

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

1.2820e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0008371159hb99db18

The reciprocal of 12820 in Base 18 Octodecimal.

Palindrome?

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

The number 23a418 is not a palindrome.

Not A Prime Number

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

Twelve thousand eight hundred and twenty is a composite number with 12 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Twelve thousand eight hundred and twenty 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 twelve thousand eight hundred and twenty has the following 3 prime factors:

2
218
Two in Base 18 Octodecimal
5
518
Five in Base 18 Octodecimal
641
1hb18
Six Hundred and Forty-One in Base 18 Octodecimal

Prime Factorization

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

2182 · 5181 · 1hb181 = 23a418

Base Conversions

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