The Number

139821

One Hundred and Thirty-Nine Thousand Eight Hundred and Twenty-One

In Base 21 Unovigesimal Is

f21321

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

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

Nearby Numbers

Positive, nonzero integers within three units

139818
f21021
One Hundred and Thirty-Nine Thousand Eight Hundred and Eightteen in Base 21 Unovigesimal
139819
f21121
One Hundred and Thirty-Nine Thousand Eight Hundred and Nineteen in Base 21 Unovigesimal
139820
f21221
One Hundred and Thirty-Nine Thousand Eight Hundred and Twenty in Base 21 Unovigesimal
139822
f21421
One Hundred and Thirty-Nine Thousand Eight Hundred and Twenty-Two in Base 21 Unovigesimal
139823
f21521
One Hundred and Thirty-Nine Thousand Eight Hundred and Twenty-Three in Base 21 Unovigesimal
139824
f21621
One Hundred and Thirty-Nine Thousand Eight Hundred and Twenty-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.

1.39821e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0001848831bk1h0d21

The reciprocal of 139821 in Base 21 Unovigesimal.

Palindrome?

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

The number f21321 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 eight hundred and twenty-one 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 eight hundred and twenty-one 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 eight hundred and twenty-one has the following 4 prime factors:

3
321
Three in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
19
j21
Nineteen in Base 21 Unovigesimal
223
ad21
Two Hundred and Twenty-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

3211 · b211 · j211 · ad211 = f21321

Base Conversions

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