The Number

21243

Twenty-One Thousand Two Hundred and Forty-Three

In Base 18 Octodecimal Is

3ba318

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

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

Nearby Numbers

Positive, nonzero integers within three units

21240
3ba018
Twenty-One Thousand Two Hundred and Forty in Base 18 Octodecimal
21241
3ba118
Twenty-One Thousand Two Hundred and Forty-One in Base 18 Octodecimal
21242
3ba218
Twenty-One Thousand Two Hundred and Forty-Two in Base 18 Octodecimal
21244
3ba418
Twenty-One Thousand Two Hundred and Forty-Four in Base 18 Octodecimal
21245
3ba518
Twenty-One Thousand Two Hundred and Forty-Five in Base 18 Octodecimal
21246
3ba618
Twenty-One Thousand Two Hundred and Forty-Six in Base 18 Octodecimal

Scientific Notation

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

2.1243e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004gh1f4de4ga94a18

The reciprocal of 21243 in Base 18 Octodecimal.

Palindrome?

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

The number 3ba318 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 two hundred and forty-three 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-one thousand two hundred and forty-three 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-one thousand two hundred and forty-three has the following 3 prime factors:

3
318
Three in Base 18 Octodecimal
73
4118
Seventy-Three in Base 18 Octodecimal
97
5718
Ninety-Seven 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 · 41181 · 57181 = 3ba318

Base Conversions

The number twenty-one thousand two hundred and forty-three in 35 different bases