The Number

20945

Twenty Thousand Nine Hundred and Forty-Five

In Base 18 Octodecimal Is

3abb18

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

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

Nearby Numbers

Positive, nonzero integers within three units

20942
3ab818
Twenty Thousand Nine Hundred and Forty-Two in Base 18 Octodecimal
20943
3ab918
Twenty Thousand Nine Hundred and Forty-Three in Base 18 Octodecimal
20944
3aba18
Twenty Thousand Nine Hundred and Forty-Four in Base 18 Octodecimal
20946
3abc18
Twenty Thousand Nine Hundred and Forty-Six in Base 18 Octodecimal
20947
3abd18
Twenty Thousand Nine Hundred and Forty-Seven in Base 18 Octodecimal
20948
3abe18
Twenty Thousand Nine Hundred and Forty-Eight in Base 18 Octodecimal

Scientific Notation

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

2.0945e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000503fg02a3he9b18

The reciprocal of 20945 in Base 18 Octodecimal.

Palindrome?

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

The number 3abb18 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 nine hundred and forty-five 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.

Twenty thousand nine hundred and forty-five 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 twenty thousand nine hundred and forty-five has the following 3 prime factors:

5
518
Five in Base 18 Octodecimal
59
3518
Fifty-Nine in Base 18 Octodecimal
71
3h18
Seventy-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

5181 · 35181 · 3h181 = 3abb18

Base Conversions

The number twenty thousand nine hundred and forty-five in 35 different bases