The Number

121891

One Hundred and Twenty-One Thousand Eight Hundred and Ninety-One

In Base 21 Unovigesimal Is

d38721

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

121888
d38421
One Hundred and Twenty-One Thousand Eight Hundred and Eighty-Eight in Base 21 Unovigesimal
121889
d38521
One Hundred and Twenty-One Thousand Eight Hundred and Eighty-Nine in Base 21 Unovigesimal
121890
d38621
One Hundred and Twenty-One Thousand Eight Hundred and Ninety in Base 21 Unovigesimal
121892
d38821
One Hundred and Twenty-One Thousand Eight Hundred and Ninety-Two in Base 21 Unovigesimal
121893
d38921
One Hundred and Twenty-One Thousand Eight Hundred and Ninety-Three in Base 21 Unovigesimal
121894
d38a21
One Hundred and Twenty-One Thousand Eight Hundred and Ninety-Four in Base 21 Unovigesimal

Scientific Notation

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

1.21891e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0001cad4e2igk25b21

The reciprocal of 121891 in Base 21 Unovigesimal.

Palindrome?

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

The number d38721 is not a palindrome.

Not A Prime Number

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

One hundred and twenty-one thousand eight hundred and ninety-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

One hundred and twenty-one thousand eight 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 one hundred and twenty-one thousand eight hundred and ninety-one has the following 3 prime factors:

7
721
Seven in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
1583
3c821
One Thousand Five Hundred and Eighty-Three in Base 21 Unovigesimal

Prime Factorization

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

7211 · b211 · 3c8211 = d38721

Base Conversions

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