The Number

28021

Twenty-Eight Thousand and Twenty-One

In Base 11 Undecimal Is

1a06411

The numbers with a 11 subscript use Base 11 Undecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

28018
1a06111
Twenty-Eight Thousand and Eightteen in Base 11 Undecimal
28019
1a06211
Twenty-Eight Thousand and Nineteen in Base 11 Undecimal
28020
1a06311
Twenty-Eight Thousand and Twenty in Base 11 Undecimal
28022
1a06511
Twenty-Eight Thousand and Twenty-Two in Base 11 Undecimal
28023
1a06611
Twenty-Eight Thousand and Twenty-Three in Base 11 Undecimal
28024
1a06711
Twenty-Eight Thousand and Twenty-Four in Base 11 Undecimal

Scientific Notation

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

2.8021e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00005824a33a772075211

The reciprocal of 28021 in Base 11 Undecimal.

Palindrome?

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

The number 1a06411 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 and twenty-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

Twenty-eight thousand and twenty-one 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-eight thousand and twenty-one has the following 2 prime factors:

7
711
Seven in Base 11 Undecimal
4003
300a11
Four Thousand and Three in Base 11 Undecimal

Prime Factorization

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

7111 · 300a111 = 1a06411

Base Conversions

The number twenty-eight thousand and twenty-one in 35 different bases