The Number

42487

Forty-Two Thousand Four Hundred and Eighty-Seven

In Base 21 Unovigesimal Is

4c7421

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

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

Nearby Numbers

Positive, nonzero integers within three units

42484
4c7121
Forty-Two Thousand Four Hundred and Eighty-Four in Base 21 Unovigesimal
42485
4c7221
Forty-Two Thousand Four Hundred and Eighty-Five in Base 21 Unovigesimal
42486
4c7321
Forty-Two Thousand Four Hundred and Eighty-Six in Base 21 Unovigesimal
42488
4c7521
Forty-Two Thousand Four Hundred and Eighty-Eight in Base 21 Unovigesimal
42489
4c7621
Forty-Two Thousand Four Hundred and Eighty-Nine in Base 21 Unovigesimal
42490
4c7721
Forty-Two Thousand Four Hundred and Ninety in Base 21 Unovigesimal

Scientific Notation

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

4.2487e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004c2dajd8j78aa21

The reciprocal of 42487 in Base 21 Unovigesimal.

Palindrome?

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

The number 4c7421 is not a palindrome.

A Prime Number

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

Forty-two thousand four hundred and eighty-seven is the 4445th prime number.   See primes in Base 21 Unovigesimal

Not A Composite

Composites have more than just these two factors.

Forty-Two Thousand Four Hundred and Eighty-Seven is not a composite number because it has exactly two factors: One and Forty-Two Thousand Four Hundred and Eighty-Seven

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 four hundred and eighty-seven has the following 1 prime factor:

42487
4c7421
Forty-Two Thousand Four Hundred and Eighty-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

4c74211 = 4c7421

Base Conversions

The number forty-two thousand four hundred and eighty-seven in 35 different bases