The Number

213561

Two Hundred and Thirteen Thousand Five Hundred and Sixty-One

In Base 21 Unovigesimal Is

1215c21

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

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

Nearby Numbers

Positive, nonzero integers within three units

213558
1215921
Two Hundred and Thirteen Thousand Five Hundred and Fifty-Eight in Base 21 Unovigesimal
213559
1215a21
Two Hundred and Thirteen Thousand Five Hundred and Fifty-Nine in Base 21 Unovigesimal
213560
1215b21
Two Hundred and Thirteen Thousand Five Hundred and Sixty in Base 21 Unovigesimal
213562
1215d21
Two Hundred and Thirteen Thousand Five Hundred and Sixty-Two in Base 21 Unovigesimal
213563
1215e21
Two Hundred and Thirteen Thousand Five Hundred and Sixty-Three in Base 21 Unovigesimal
213564
1215f21
Two Hundred and Thirteen Thousand Five Hundred and Sixty-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.

2.13561e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000j2ccdcj20ig321

The reciprocal of 213561 in Base 21 Unovigesimal.

Palindrome?

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

The number 1215c21 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 five hundred and sixty-one is a composite number with 12 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 five hundred and sixty-one is a composite number with 12 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 five hundred and sixty-one has the following 3 prime factors:

3
321
Three in Base 21 Unovigesimal
61
2j21
Sixty-One in Base 21 Unovigesimal
389
ib21
Three Hundred and Eighty-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

3212 · 2j211 · ib211 = 1215c21

Base Conversions

The number two hundred and thirteen thousand five hundred and sixty-one in 35 different bases