The Number

28728

Twenty-Eight Thousand Seven Hundred and Twenty-Eight

In Base 15 Quindecimal Is

87a315

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

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

Nearby Numbers

Positive, nonzero integers within three units

28725
87a015
Twenty-Eight Thousand Seven Hundred and Twenty-Five in Base 15 Quindecimal
28726
87a115
Twenty-Eight Thousand Seven Hundred and Twenty-Six in Base 15 Quindecimal
28727
87a215
Twenty-Eight Thousand Seven Hundred and Twenty-Seven in Base 15 Quindecimal
28729
87a415
Twenty-Eight Thousand Seven Hundred and Twenty-Nine in Base 15 Quindecimal
28730
87a515
Twenty-Eight Thousand Seven Hundred and Thirty in Base 15 Quindecimal
28731
87a615
Twenty-Eight Thousand Seven Hundred and Thirty-One in Base 15 Quindecimal

Scientific Notation

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

2.8728e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0001b67744dc05a9a15

The reciprocal of 28728 in Base 15 Quindecimal.

Palindrome?

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

The number 87a315 is not a palindrome.

Not A Prime Number

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

Twenty-eight thousand seven hundred and twenty-eight is a composite number with 64 total factors (including 1 and itself).   See primes in Base 15 Quindecimal

A Composite

Composites have more than just these two factors.

Twenty-eight thousand seven hundred and twenty-eight is a composite number with 64 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-eight thousand seven hundred and twenty-eight has the following 4 prime factors:

2
215
Two in Base 15 Quindecimal
3
315
Three in Base 15 Quindecimal
7
715
Seven in Base 15 Quindecimal
19
1415
Nineteen in Base 15 Quindecimal

Prime Factorization

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

2153 · 3153 · 7151 · 14151 = 87a315

Base Conversions

The number twenty-eight thousand seven hundred and twenty-eight in 35 different bases