The Number

8991

Eight Thousand Nine Hundred and Ninety-One

In Base 13 Tridecimal Is

412813

The numbers with a 13 subscript use Base 13 Tridecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

8988
412513
Eight Thousand Nine Hundred and Eighty-Eight in Base 13 Tridecimal
8989
412613
Eight Thousand Nine Hundred and Eighty-Nine in Base 13 Tridecimal
8990
412713
Eight Thousand Nine Hundred and Ninety in Base 13 Tridecimal
8992
412913
Eight Thousand Nine Hundred and Ninety-Two in Base 13 Tridecimal
8993
412a13
Eight Thousand Nine Hundred and Ninety-Three in Base 13 Tridecimal
8994
412b13
Eight Thousand Nine Hundred and Ninety-Four in Base 13 Tridecimal

Scientific Notation

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

8.991e3

Reciprocal

A number multiplied with its reciprocal is one.

0.000323b0621c15c72b13

The reciprocal of 8991 in Base 13 Tridecimal.

Palindrome?

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

The number 412813 is not a palindrome.

Not A Prime Number

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

Eight thousand nine hundred and ninety-one is a composite number with 12 total factors (including 1 and itself).   See primes in Base 13 Tridecimal

A Composite

Composites have more than just these two factors.

Eight thousand nine hundred and ninety-one 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 eight thousand nine hundred and ninety-one has the following 2 prime factors:

3
313
Three in Base 13 Tridecimal
37
2b13
Thirty-Seven in Base 13 Tridecimal

Prime Factorization

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

3135 · 2b131 = 412813

Base Conversions

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