The Number

4991

Four Thousand Nine Hundred and Ninety-One

In Base 12 Duodecimal Is

2a7b12

The numbers with a 12 subscript use Base 12 Duodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

4988
2a7812
Four Thousand Nine Hundred and Eighty-Eight in Base 12 Duodecimal
4989
2a7912
Four Thousand Nine Hundred and Eighty-Nine in Base 12 Duodecimal
4990
2a7a12
Four Thousand Nine Hundred and Ninety in Base 12 Duodecimal
4992
2a8012
Four Thousand Nine Hundred and Ninety-Two in Base 12 Duodecimal
4993
2a8112
Four Thousand Nine Hundred and Ninety-Three in Base 12 Duodecimal
4994
2a8212
Four Thousand Nine Hundred and Ninety-Four in Base 12 Duodecimal

Scientific Notation

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

4.991e3

Reciprocal

A number multiplied with its reciprocal is one.

0.00041a334b35a4531612

The reciprocal of 4991 in Base 12 Duodecimal.

Palindrome?

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

The number 2a7b12 is not a palindrome.

Not A Prime Number

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

Four thousand nine hundred and ninety-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 12 Duodecimal

A Composite

Composites have more than just these two factors.

Four thousand nine hundred and ninety-one is a composite number with 8 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 four thousand nine hundred and ninety-one has the following 3 prime factors:

7
712
Seven in Base 12 Duodecimal
23
1b12
Twenty-Three in Base 12 Duodecimal
31
2712
Thirty-One in Base 12 Duodecimal

Prime Factorization

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

7121 · 1b121 · 27121 = 2a7b12

Base Conversions

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