The Number

139685

One Hundred and Thirty-Nine Thousand Six Hundred and Eighty-Five

In Base 21 Unovigesimal Is

f1fe21

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

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

Nearby Numbers

Positive, nonzero integers within three units

139682
f1fb21
One Hundred and Thirty-Nine Thousand Six Hundred and Eighty-Two in Base 21 Unovigesimal
139683
f1fc21
One Hundred and Thirty-Nine Thousand Six Hundred and Eighty-Three in Base 21 Unovigesimal
139684
f1fd21
One Hundred and Thirty-Nine Thousand Six Hundred and Eighty-Four in Base 21 Unovigesimal
139686
f1ff21
One Hundred and Thirty-Nine Thousand Six Hundred and Eighty-Six in Base 21 Unovigesimal
139687
f1fg21
One Hundred and Thirty-Nine Thousand Six Hundred and Eighty-Seven in Base 21 Unovigesimal
139688
f1fh21
One Hundred and Thirty-Nine Thousand Six Hundred and Eighty-Eight in Base 21 Unovigesimal

Scientific Notation

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

1.39685e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000184kjaj08c19321

The reciprocal of 139685 in Base 21 Unovigesimal.

Palindrome?

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

The number f1fe21 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 thirty-nine thousand six hundred and eighty-five is a composite number with 16 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 thirty-nine thousand six hundred and eighty-five is a composite number with 16 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 thirty-nine thousand six hundred and eighty-five has the following 4 prime factors:

5
521
Five in Base 21 Unovigesimal
7
721
Seven in Base 21 Unovigesimal
13
d21
Thirteen in Base 21 Unovigesimal
307
ed21
Three Hundred and Seven in Base 21 Unovigesimal

Prime Factorization

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

5211 · 7211 · d211 · ed211 = f1fe21

Base Conversions

The number one hundred and thirty-nine thousand six hundred and eighty-five in 35 different bases