The Number

21509

Twenty-One Thousand Five Hundred and Nine

In Base 14 Quattuordecimal Is

7ba514

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

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

Nearby Numbers

Positive, nonzero integers within three units

21506
7ba214
Twenty-One Thousand Five Hundred and Six in Base 14 Quattuordecimal
21507
7ba314
Twenty-One Thousand Five Hundred and Seven in Base 14 Quattuordecimal
21508
7ba414
Twenty-One Thousand Five Hundred and Eight in Base 14 Quattuordecimal
21510
7ba614
Twenty-One Thousand Five Hundred and Ten in Base 14 Quattuordecimal
21511
7ba714
Twenty-One Thousand Five Hundred and Eleven in Base 14 Quattuordecimal
21512
7ba814
Twenty-One Thousand Five Hundred and Twelve in Base 14 Quattuordecimal

Scientific Notation

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

2.1509e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0001b00c8b654501814

The reciprocal of 21509 in Base 14 Quattuordecimal.

Palindrome?

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

The number 7ba514 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 five hundred and nine is a composite number with 4 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 five hundred and nine is a composite number with 4 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 five hundred and nine has the following 2 prime factors:

137
9b14
One Hundred and Thirty-Seven in Base 14 Quattuordecimal
157
b314
One Hundred and Fifty-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

9b141 · b3141 = 7ba514

Base Conversions

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