The Number

21948

Twenty-One Thousand Nine Hundred and Forty-Eight

In Base 18 Octodecimal Is

3dd618

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

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

Nearby Numbers

Positive, nonzero integers within three units

21945
3dd318
Twenty-One Thousand Nine Hundred and Forty-Five in Base 18 Octodecimal
21946
3dd418
Twenty-One Thousand Nine Hundred and Forty-Six in Base 18 Octodecimal
21947
3dd518
Twenty-One Thousand Nine Hundred and Forty-Seven in Base 18 Octodecimal
21949
3dd718
Twenty-One Thousand Nine Hundred and Forty-Nine in Base 18 Octodecimal
21950
3dd818
Twenty-One Thousand Nine Hundred and Fifty in Base 18 Octodecimal
21951
3dd918
Twenty-One Thousand Nine Hundred and Fifty-One in Base 18 Octodecimal

Scientific Notation

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

2.1948e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004e1c213b0416318

The reciprocal of 21948 in Base 18 Octodecimal.

Palindrome?

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

The number 3dd618 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand nine hundred and forty-eight is a composite number with 24 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand nine hundred and forty-eight 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 twenty-one thousand nine hundred and forty-eight has the following 4 prime factors:

2
218
Two in Base 18 Octodecimal
3
318
Three in Base 18 Octodecimal
31
1d18
Thirty-One in Base 18 Octodecimal
59
3518
Fifty-Nine 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 · 3181 · 1d181 · 35181 = 3dd618

Base Conversions

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