The Number

21828

Twenty-One Thousand Eight Hundred and Twenty-Eight

In Base 8 Octal Is

525048

The numbers with a 8 subscript use Base 8 Octal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21825
525018
Twenty-One Thousand Eight Hundred and Twenty-Five in Base 8 Octal
21826
525028
Twenty-One Thousand Eight Hundred and Twenty-Six in Base 8 Octal
21827
525038
Twenty-One Thousand Eight Hundred and Twenty-Seven in Base 8 Octal
21829
525058
Twenty-One Thousand Eight Hundred and Twenty-Nine in Base 8 Octal
21830
525068
Twenty-One Thousand Eight Hundred and Thirty in Base 8 Octal
21831
525078
Twenty-One Thousand Eight Hundred and Thirty-One in Base 8 Octal

Scientific Notation

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

2.1828e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00001400470176663420748

The reciprocal of 21828 in Base 8 Octal.

Palindrome?

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

The number 525048 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 eight hundred and twenty-eight is a composite number with 24 total factors (including 1 and itself).   See primes in Base 8 Octal

A Composite

Composites have more than just these two factors.

Twenty-one thousand eight hundred and twenty-eight is a composite number with 24 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 eight hundred and twenty-eight has the following 4 prime factors:

2
28
Two in Base 8 Octal
3
38
Three in Base 8 Octal
17
218
Seventeen in Base 8 Octal
107
1538
One Hundred and Seven in Base 8 Octal

Prime Factorization

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

282 · 381 · 2181 · 15381 = 525048

Base Conversions

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