The Number

213731

Two Hundred and Thirteen Thousand Seven Hundred and Thirty-One

In Base 21 Unovigesimal Is

121de21

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

For more familiar numbers: See Two Hundred and Thirteen Thousand Seven Hundred and Thirty-One in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

213728
121db21
Two Hundred and Thirteen Thousand Seven Hundred and Twenty-Eight in Base 21 Unovigesimal
213729
121dc21
Two Hundred and Thirteen Thousand Seven Hundred and Twenty-Nine in Base 21 Unovigesimal
213730
121dd21
Two Hundred and Thirteen Thousand Seven Hundred and Thirty in Base 21 Unovigesimal
213732
121df21
Two Hundred and Thirteen Thousand Seven Hundred and Thirty-Two in Base 21 Unovigesimal
213733
121dg21
Two Hundred and Thirteen Thousand Seven Hundred and Thirty-Three in Base 21 Unovigesimal
213734
121dh21
Two Hundred and Thirteen Thousand Seven Hundred and Thirty-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.

2.13731e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000j25ig7j2kfid21

The reciprocal of 213731 in Base 21 Unovigesimal.

Palindrome?

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

The number 121de21 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Two hundred and thirteen thousand seven hundred and thirty-one 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.

Two hundred and thirteen thousand seven hundred and thirty-one 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 two hundred and thirteen thousand seven hundred and thirty-one has the following 3 prime factors:

7
721
Seven in Base 21 Unovigesimal
19
j21
Nineteen in Base 21 Unovigesimal
1607
3db21
One Thousand Six 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

7211 · j211 · 3db211 = 121de21

Base Conversions

The number two hundred and thirteen thousand seven hundred and thirty-one in 35 different bases