The Number

4991

Four Thousand Nine Hundred and Ninety-One

In Base 15 Quindecimal Is

172b15

The numbers with a 15 subscript use Base 15 Quindecimal 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
172815
Four Thousand Nine Hundred and Eighty-Eight in Base 15 Quindecimal
4989
172915
Four Thousand Nine Hundred and Eighty-Nine in Base 15 Quindecimal
4990
172a15
Four Thousand Nine Hundred and Ninety in Base 15 Quindecimal
4992
172c15
Four Thousand Nine Hundred and Ninety-Two in Base 15 Quindecimal
4993
172d15
Four Thousand Nine Hundred and Ninety-Three in Base 15 Quindecimal
4994
172e15
Four Thousand Nine Hundred and Ninety-Four in Base 15 Quindecimal

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.

0.000a223766920056215

The reciprocal of 4991 in Base 15 Quindecimal.

Palindrome?

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

The number 172b15 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 15 Quindecimal

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
715
Seven in Base 15 Quindecimal
23
1815
Twenty-Three in Base 15 Quindecimal
31
2115
Thirty-One in Base 15 Quindecimal

Prime Factorization

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

7151 · 18151 · 21151 = 172b15

Base Conversions

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