The Number

42815

Forty-Two Thousand Eight Hundred and Fifteen

In Base 21 Unovigesimal Is

4d1h21

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

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

Nearby Numbers

Positive, nonzero integers within three units

42812
4d1e21
Forty-Two Thousand Eight Hundred and Twelve in Base 21 Unovigesimal
42813
4d1f21
Forty-Two Thousand Eight Hundred and Thirteen in Base 21 Unovigesimal
42814
4d1g21
Forty-Two Thousand Eight Hundred and Fourteen in Base 21 Unovigesimal
42816
4d1i21
Forty-Two Thousand Eight Hundred and Sixteen in Base 21 Unovigesimal
42817
4d1j21
Forty-Two Thousand Eight Hundred and Seventeen in Base 21 Unovigesimal
42818
4d1k21
Forty-Two Thousand Eight Hundred and Eightteen in Base 21 Unovigesimal

Scientific Notation

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

4.2815e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004b83g172f3ed421

The reciprocal of 42815 in Base 21 Unovigesimal.

Palindrome?

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

The number 4d1h21 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 eight hundred and fifteen is a composite number with 4 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 eight hundred and fifteen is a composite number with 4 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 eight hundred and fifteen has the following 2 prime factors:

5
521
Five in Base 21 Unovigesimal
8563
j8g21
Eight Thousand Five Hundred and Sixty-Three 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 · j8g211 = 4d1h21

Base Conversions

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