The Number

1921

One Thousand Nine Hundred and Twenty-One

In Base 15 Quindecimal Is

88115

The numbers with a 15 subscript use Base 15 Quindecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

1918
87d15
One Thousand Nine Hundred and Eightteen in Base 15 Quindecimal
1919
87e15
One Thousand Nine Hundred and Nineteen in Base 15 Quindecimal
1920
88015
One Thousand Nine Hundred and Twenty in Base 15 Quindecimal
1922
88215
One Thousand Nine Hundred and Twenty-Two in Base 15 Quindecimal
1923
88315
One Thousand Nine Hundred and Twenty-Three in Base 15 Quindecimal
1924
88415
One Thousand Nine Hundred and Twenty-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.

1.921e3

Reciprocal

A number multiplied with its reciprocal is one.

0.001b547e001b547e15

The reciprocal of 1921 in Base 15 Quindecimal.

Palindrome?

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

The number 88115 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 twenty-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 15 Quindecimal

A Composite

Composites have more than just these two factors.

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

17
1215
Seventeen in Base 15 Quindecimal
113
7815
One Hundred and Thirteen in Base 15 Quindecimal

Prime Factorization

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

12151 · 78151 = 88115

Base Conversions

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