The Number

28001

Twenty-Eight Thousand and One

In Base 8 Octal Is

665418

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

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

Nearby Numbers

Positive, nonzero integers within three units

27998
665368
Twenty-Seven Thousand Nine Hundred and Ninety-Eight in Base 8 Octal
27999
665378
Twenty-Seven Thousand Nine Hundred and Ninety-Nine in Base 8 Octal
28000
665408
Twenty-Eight Thousand in Base 8 Octal
28002
665428
Twenty-Eight Thousand and Two in Base 8 Octal
28003
665438
Twenty-Eight Thousand and Three in Base 8 Octal
28004
665448
Twenty-Eight Thousand and Four in Base 8 Octal

Scientific Notation

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

2.8001e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000011271243301022075548

The reciprocal of 28001 in Base 8 Octal.

Palindrome?

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

The number 665418 is not a palindrome.

A Prime Number

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

Twenty-eight thousand and one is the 3056th prime number.   See primes in Base 8 Octal

Not A Composite

Composites have more than just these two factors.

Twenty-Eight Thousand and One is not a composite number because it has exactly two factors: One and Twenty-Eight Thousand and One

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 one has the following 1 prime factor:

28001
665418
Twenty-Eight Thousand and One in Base 8 Octal

Prime Factorization

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

6654181 = 665418

Base Conversions

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