The Number

1991

One Thousand Nine Hundred and Ninety-One

In Base 14 Quattuordecimal Is

a2314

The numbers with a 14 subscript use Base 14 Quattuordecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

1988
a2014
One Thousand Nine Hundred and Eighty-Eight in Base 14 Quattuordecimal
1989
a2114
One Thousand Nine Hundred and Eighty-Nine in Base 14 Quattuordecimal
1990
a2214
One Thousand Nine Hundred and Ninety in Base 14 Quattuordecimal
1992
a2414
One Thousand Nine Hundred and Ninety-Two in Base 14 Quattuordecimal
1993
a2514
One Thousand Nine Hundred and Ninety-Three in Base 14 Quattuordecimal
1994
a2614
One Thousand Nine Hundred and Ninety-Four in Base 14 Quattuordecimal

Scientific Notation

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

1.991e3

Reciprocal

A number multiplied with its reciprocal is one.

0.001541b00c59210814

The reciprocal of 1991 in Base 14 Quattuordecimal.

Palindrome?

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

The number a2314 is not a palindrome.

Not A Prime Number

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

One thousand nine hundred and ninety-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 14 Quattuordecimal

A Composite

Composites have more than just these two factors.

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

11
b14
Eleven in Base 14 Quattuordecimal
181
cd14
One Hundred and Eighty-One in Base 14 Quattuordecimal

Prime Factorization

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

b141 · cd141 = a2314

Base Conversions

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