The Number

128986

One Hundred and Twenty-Eight Thousand Nine Hundred and Eighty-Six

In Base 21 Unovigesimal Is

dja421

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

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

Nearby Numbers

Positive, nonzero integers within three units

128983
dja121
One Hundred and Twenty-Eight Thousand Nine Hundred and Eighty-Three in Base 21 Unovigesimal
128984
dja221
One Hundred and Twenty-Eight Thousand Nine Hundred and Eighty-Four in Base 21 Unovigesimal
128985
dja321
One Hundred and Twenty-Eight Thousand Nine Hundred and Eighty-Five in Base 21 Unovigesimal
128987
dja521
One Hundred and Twenty-Eight Thousand Nine Hundred and Eighty-Seven in Base 21 Unovigesimal
128988
dja621
One Hundred and Twenty-Eight Thousand Nine Hundred and Eighty-Eight in Base 21 Unovigesimal
128989
dja721
One Hundred and Twenty-Eight Thousand Nine Hundred and Eighty-Nine in Base 21 Unovigesimal

Scientific Notation

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

1.28986e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0001adj95k39ie2921

The reciprocal of 128986 in Base 21 Unovigesimal.

Palindrome?

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

The number dja421 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 nine hundred and eighty-six is a composite number with 24 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 nine hundred and eighty-six is a composite number with 24 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 nine hundred and eighty-six has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
13
d21
Thirteen in Base 21 Unovigesimal
41
1k21
Forty-One 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 · b212 · d211 · 1k211 = dja421

Base Conversions

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