The Number

42545

Forty-Two Thousand Five Hundred and Forty-Five

In Base 21 Unovigesimal Is

4c9k21

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

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

Nearby Numbers

Positive, nonzero integers within three units

42542
4c9h21
Forty-Two Thousand Five Hundred and Forty-Two in Base 21 Unovigesimal
42543
4c9i21
Forty-Two Thousand Five Hundred and Forty-Three in Base 21 Unovigesimal
42544
4c9j21
Forty-Two Thousand Five Hundred and Forty-Four in Base 21 Unovigesimal
42546
4ca021
Forty-Two Thousand Five Hundred and Forty-Six in Base 21 Unovigesimal
42547
4ca121
Forty-Two Thousand Five Hundred and Forty-Seven in Base 21 Unovigesimal
42548
4ca221
Forty-Two Thousand Five Hundred and Forty-Eight in Base 21 Unovigesimal

Scientific Notation

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

4.2545e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004bkif6j2e2jb421

The reciprocal of 42545 in Base 21 Unovigesimal.

Palindrome?

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

The number 4c9k21 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 forty-five 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.

Forty-two thousand five hundred and forty-five 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 forty-two thousand five hundred and forty-five has the following 3 prime factors:

5
521
Five in Base 21 Unovigesimal
67
3421
Sixty-Seven in Base 21 Unovigesimal
127
6121
One Hundred and Twenty-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

5211 · 34211 · 61211 = 4c9k21

Base Conversions

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