The Number

21555

Twenty-One Thousand Five Hundred and Fifty-Five

In Base 15 Quindecimal Is

65c015

The numbers with a 15 subscript use Base 15 Quindecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21552
65bc15
Twenty-One Thousand Five Hundred and Fifty-Two in Base 15 Quindecimal
21553
65bd15
Twenty-One Thousand Five Hundred and Fifty-Three in Base 15 Quindecimal
21554
65be15
Twenty-One Thousand Five Hundred and Fifty-Four in Base 15 Quindecimal
21556
65c115
Twenty-One Thousand Five Hundred and Fifty-Six in Base 15 Quindecimal
21557
65c215
Twenty-One Thousand Five Hundred and Fifty-Seven in Base 15 Quindecimal
21558
65c315
Twenty-One Thousand Five Hundred and Fifty-Eight in Base 15 Quindecimal

Scientific Notation

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

2.1555e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0002536a0bb2353da815

The reciprocal of 21555 in Base 15 Quindecimal.

Palindrome?

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

The number 65c015 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 fifty-five is a composite number with 12 total factors (including 1 and itself).   See primes in Base 15 Quindecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand five hundred and fifty-five is a composite number with 12 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 fifty-five has the following 3 prime factors:

3
315
Three in Base 15 Quindecimal
5
515
Five in Base 15 Quindecimal
479
21e15
Four Hundred and Seventy-Nine in Base 15 Quindecimal

Prime Factorization

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

3152 · 5151 · 21e151 = 65c015

Base Conversions

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