The Number

42561

Forty-Two Thousand Five Hundred and Sixty-One

In Base 21 Unovigesimal Is

4caf21

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

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

Nearby Numbers

Positive, nonzero integers within three units

42558
4cac21
Forty-Two Thousand Five Hundred and Fifty-Eight in Base 21 Unovigesimal
42559
4cad21
Forty-Two Thousand Five Hundred and Fifty-Nine in Base 21 Unovigesimal
42560
4cae21
Forty-Two Thousand Five Hundred and Sixty in Base 21 Unovigesimal
42562
4cag21
Forty-Two Thousand Five Hundred and Sixty-Two in Base 21 Unovigesimal
42563
4cah21
Forty-Two Thousand Five Hundred and Sixty-Three in Base 21 Unovigesimal
42564
4cai21
Forty-Two 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.

4.2561e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004bk2h2c7ekd921

The reciprocal of 42561 in Base 21 Unovigesimal.

Palindrome?

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

The number 4caf21 is not a palindrome.

Not A Prime Number

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

Forty-two thousand five hundred and sixty-one is a composite number with 6 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Forty-two thousand five hundred and sixty-one is a composite number with 6 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 forty-two thousand five hundred and sixty-one has the following 2 prime factors:

3
321
Three in Base 21 Unovigesimal
4729
af421
Four Thousand Seven Hundred and Twenty-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 · af4211 = 4caf21

Base Conversions

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