The Number

81621

Eighty-One Thousand Six Hundred and Twenty-One

In Base 20 Vigesimal Is

a41120

The numbers with a 20 subscript use Base 20 Vigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

81618
a40i20
Eighty-One Thousand Six Hundred and Eightteen in Base 20 Vigesimal
81619
a40j20
Eighty-One Thousand Six Hundred and Nineteen in Base 20 Vigesimal
81620
a41020
Eighty-One Thousand Six Hundred and Twenty in Base 20 Vigesimal
81622
a41220
Eighty-One Thousand Six Hundred and Twenty-Two in Base 20 Vigesimal
81623
a41320
Eighty-One Thousand Six Hundred and Twenty-Three in Base 20 Vigesimal
81624
a41420
Eighty-One Thousand Six Hundred and Twenty-Four in Base 20 Vigesimal

Scientific Notation

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

8.1621e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0001j424f926c44820

The reciprocal of 81621 in Base 20 Vigesimal.

Palindrome?

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

The number a41120 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 six hundred and twenty-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 20 Vigesimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand six hundred and twenty-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 eighty-one thousand six hundred and twenty-one has the following 2 prime factors:

3
320
Three in Base 20 Vigesimal
3023
7b320
Three Thousand and Twenty-Three in Base 20 Vigesimal

Prime Factorization

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

3203 · 7b3201 = a41120

Base Conversions

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