The Number

213643

Two Hundred and Thirteen Thousand Six Hundred and Forty-Three

In Base 21 Unovigesimal Is

1219a21

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

For more familiar numbers: See Two Hundred and Thirteen Thousand Six Hundred and Forty-Three in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

213640
1219721
Two Hundred and Thirteen Thousand Six Hundred and Forty in Base 21 Unovigesimal
213641
1219821
Two Hundred and Thirteen Thousand Six Hundred and Forty-One in Base 21 Unovigesimal
213642
1219921
Two Hundred and Thirteen Thousand Six Hundred and Forty-Two in Base 21 Unovigesimal
213644
1219b21
Two Hundred and Thirteen Thousand Six Hundred and Forty-Four in Base 21 Unovigesimal
213645
1219c21
Two Hundred and Thirteen Thousand Six Hundred and Forty-Five in Base 21 Unovigesimal
213646
1219d21
Two Hundred and Thirteen Thousand Six Hundred and Forty-Six in Base 21 Unovigesimal

Scientific Notation

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

2.13643e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000j297e279k5dk21

The reciprocal of 213643 in Base 21 Unovigesimal.

Palindrome?

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

The number 1219a21 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 six hundred and forty-three 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 six hundred and forty-three 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 six hundred and forty-three has the following 3 prime factors:

29
1821
Twenty-Nine in Base 21 Unovigesimal
53
2b21
Fifty-Three in Base 21 Unovigesimal
139
6d21
One Hundred and Thirty-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

18211 · 2b211 · 6d211 = 1219a21

Base Conversions

The number two hundred and thirteen thousand six hundred and forty-three in 35 different bases