The Number

12921

Twelve Thousand Nine Hundred and Twenty-One

In Base 18 Octodecimal Is

23ff18

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

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

Nearby Numbers

Positive, nonzero integers within three units

12918
23fc18
Twelve Thousand Nine Hundred and Eightteen in Base 18 Octodecimal
12919
23fd18
Twelve Thousand Nine Hundred and Nineteen in Base 18 Octodecimal
12920
23fe18
Twelve Thousand Nine Hundred and Twenty in Base 18 Octodecimal
12922
23fg18
Twelve Thousand Nine Hundred and Twenty-Two in Base 18 Octodecimal
12923
23fh18
Twelve Thousand Nine Hundred and Twenty-Three in Base 18 Octodecimal
12924
23g018
Twelve Thousand Nine Hundred and Twenty-Four in Base 18 Octodecimal

Scientific Notation

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

1.2921e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0008245e20ce387f18

The reciprocal of 12921 in Base 18 Octodecimal.

Palindrome?

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

The number 23ff18 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 nine hundred and twenty-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Twelve thousand nine hundred and twenty-one is a composite number with 8 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 nine hundred and twenty-one has the following 3 prime factors:

3
318
Three in Base 18 Octodecimal
59
3518
Fifty-Nine in Base 18 Octodecimal
73
4118
Seventy-Three in Base 18 Octodecimal

Prime Factorization

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

3181 · 35181 · 41181 = 23ff18

Base Conversions

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