The Number

42540

Forty-Two Thousand Five Hundred and Forty

In Base 21 Unovigesimal Is

4c9f21

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

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

Nearby Numbers

Positive, nonzero integers within three units

42537
4c9c21
Forty-Two Thousand Five Hundred and Thirty-Seven in Base 21 Unovigesimal
42538
4c9d21
Forty-Two Thousand Five Hundred and Thirty-Eight in Base 21 Unovigesimal
42539
4c9e21
Forty-Two Thousand Five Hundred and Thirty-Nine in Base 21 Unovigesimal
42541
4c9g21
Forty-Two Thousand Five Hundred and Forty-One in Base 21 Unovigesimal
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

Scientific Notation

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

4.2540e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004c02eh4cd40421

The reciprocal of 42540 in Base 21 Unovigesimal.

Palindrome?

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

The number 4c9f21 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 is a composite number with 24 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 is a composite number with 24 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 has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
709
1cg21
Seven Hundred and 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

2212 · 3211 · 5211 · 1cg211 = 4c9f21

Base Conversions

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