The Number

81921

Eighty-One Thousand Nine Hundred and Twenty-One

In Base 14 Quattuordecimal Is

21bd714

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

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

Nearby Numbers

Positive, nonzero integers within three units

81918
21bd414
Eighty-One Thousand Nine Hundred and Eightteen in Base 14 Quattuordecimal
81919
21bd514
Eighty-One Thousand Nine Hundred and Nineteen in Base 14 Quattuordecimal
81920
21bd614
Eighty-One Thousand Nine Hundred and Twenty in Base 14 Quattuordecimal
81922
21bd814
Eighty-One Thousand Nine Hundred and Twenty-Two in Base 14 Quattuordecimal
81923
21bd914
Eighty-One Thousand Nine Hundred and Twenty-Three in Base 14 Quattuordecimal
81924
21bda14
Eighty-One Thousand Nine Hundred and Twenty-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.

8.1921e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000067caad7215d6b814

The reciprocal of 81921 in Base 14 Quattuordecimal.

Palindrome?

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

The number 21bd714 is not a palindrome.

Not A Prime Number

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

Eighty-one thousand nine hundred and twenty-one is a composite number with 16 total factors (including 1 and itself).   See primes in Base 14 Quattuordecimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand nine hundred and twenty-one is a composite number with 16 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 eighty-one thousand nine hundred and twenty-one has the following 4 prime factors:

3
314
Three in Base 14 Quattuordecimal
7
714
Seven in Base 14 Quattuordecimal
47
3514
Forty-Seven in Base 14 Quattuordecimal
83
5d14
Eighty-Three in Base 14 Quattuordecimal

Prime Factorization

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

3141 · 7141 · 35141 · 5d141 = 21bd714

Base Conversions

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