The Number

7991

Seven Thousand Nine Hundred and Ninety-One

In Base 13 Tridecimal Is

383913

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

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

Nearby Numbers

Positive, nonzero integers within three units

7988
383613
Seven Thousand Nine Hundred and Eighty-Eight in Base 13 Tridecimal
7989
383713
Seven Thousand Nine Hundred and Eighty-Nine in Base 13 Tridecimal
7990
383813
Seven Thousand Nine Hundred and Ninety in Base 13 Tridecimal
7992
383a13
Seven Thousand Nine Hundred and Ninety-Two in Base 13 Tridecimal
7993
383b13
Seven Thousand Nine Hundred and Ninety-Three in Base 13 Tridecimal
7994
383c13
Seven 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.

7.991e3

Reciprocal

A number multiplied with its reciprocal is one.

0.000376052488685c113

The reciprocal of 7991 in Base 13 Tridecimal.

Palindrome?

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

The number 383913 is not a palindrome.

Not A Prime Number

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

Seven thousand nine hundred and ninety-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 13 Tridecimal

A Composite

Composites have more than just these two factors.

Seven thousand nine hundred and ninety-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 seven thousand nine hundred and ninety-one has the following 2 prime factors:

61
4913
Sixty-One in Base 13 Tridecimal
131
a113
One Hundred and Thirty-One in Base 13 Tridecimal

Prime Factorization

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

49131 · a1131 = 383913

Base Conversions

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