The Number

128513

One Hundred and Twenty-Eight Thousand Five Hundred and Thirteen

In Base 21 Unovigesimal Is

di8e21

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

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

Nearby Numbers

Positive, nonzero integers within three units

128510
di8b21
One Hundred and Twenty-Eight Thousand Five Hundred and Ten in Base 21 Unovigesimal
128511
di8c21
One Hundred and Twenty-Eight Thousand Five Hundred and Eleven in Base 21 Unovigesimal
128512
di8d21
One Hundred and Twenty-Eight Thousand Five Hundred and Twelve in Base 21 Unovigesimal
128514
di8f21
One Hundred and Twenty-Eight Thousand Five Hundred and Fourteen in Base 21 Unovigesimal
128515
di8g21
One Hundred and Twenty-Eight Thousand Five Hundred and Fifteen in Base 21 Unovigesimal
128516
di8h21
One Hundred and Twenty-Eight Thousand Five Hundred and Sixteen in Base 21 Unovigesimal

Scientific Notation

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

1.28513e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0001ag7hb8c5h31b21

The reciprocal of 128513 in Base 21 Unovigesimal.

Palindrome?

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

The number di8e21 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-eight thousand five hundred and thirteen 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-eight thousand five hundred and thirteen 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-eight thousand five hundred and thirteen has the following 3 prime factors:

7
721
Seven in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
1669
3ga21
One Thousand Six Hundred and Sixty-Nine 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 · 3ga211 = di8e21

Base Conversions

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