The Number

128678

One Hundred and Twenty-Eight Thousand Six Hundred and Seventy-Eight

In Base 21 Unovigesimal Is

digb21

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

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

Nearby Numbers

Positive, nonzero integers within three units

128675
dig821
One Hundred and Twenty-Eight Thousand Six Hundred and Seventy-Five in Base 21 Unovigesimal
128676
dig921
One Hundred and Twenty-Eight Thousand Six Hundred and Seventy-Six in Base 21 Unovigesimal
128677
diga21
One Hundred and Twenty-Eight Thousand Six Hundred and Seventy-Seven in Base 21 Unovigesimal
128679
digc21
One Hundred and Twenty-Eight Thousand Six Hundred and Seventy-Nine in Base 21 Unovigesimal
128680
digd21
One Hundred and Twenty-Eight Thousand Six Hundred and Eighty in Base 21 Unovigesimal
128681
dige21
One Hundred and Twenty-Eight Thousand Six Hundred and Eighty-One in Base 21 Unovigesimal

Scientific Notation

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

1.28678e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0001afai35j55kci21

The reciprocal of 128678 in Base 21 Unovigesimal.

Palindrome?

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

The number digb21 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 six hundred and seventy-eight 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 six hundred and seventy-eight 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 six hundred and seventy-eight has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
5849
d5b21
Five Thousand Eight Hundred and Forty-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

2211 · b211 · d5b211 = digb21

Base Conversions

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