The Number

21405

Twenty-One Thousand Four Hundred and Five

In Base 14 Quattuordecimal Is

7b2d14

The numbers with a 14 subscript use Base 14 Quattuordecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21402
7b2a14
Twenty-One Thousand Four Hundred and Two in Base 14 Quattuordecimal
21403
7b2b14
Twenty-One Thousand Four Hundred and Three in Base 14 Quattuordecimal
21404
7b2c14
Twenty-One Thousand Four Hundred and Four in Base 14 Quattuordecimal
21406
7b3014
Twenty-One Thousand Four Hundred and Six in Base 14 Quattuordecimal
21407
7b3114
Twenty-One Thousand Four Hundred and Seven in Base 14 Quattuordecimal
21408
7b3214
Twenty-One Thousand Four Hundred and Eight in Base 14 Quattuordecimal

Scientific Notation

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

2.1405e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0001b1a9dd4729523914

The reciprocal of 21405 in Base 14 Quattuordecimal.

Palindrome?

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

The number 7b2d14 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 four hundred and five is a composite number with 8 total factors (including 1 and itself).   See primes in Base 14 Quattuordecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand four hundred and 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-one thousand four hundred and five has the following 3 prime factors:

3
314
Three in Base 14 Quattuordecimal
5
514
Five in Base 14 Quattuordecimal
1427
73d14
One Thousand Four Hundred and Twenty-Seven in Base 14 Quattuordecimal

Prime Factorization

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

3141 · 5141 · 73d141 = 7b2d14

Base Conversions

The number twenty-one thousand four hundred and five in 35 different bases