The Number

42105

Forty-Two Thousand One Hundred and Five

In Base 15 Quindecimal Is

c72015

The numbers with a 15 subscript use Base 15 Quindecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

42102
c71c15
Forty-Two Thousand One Hundred and Two in Base 15 Quindecimal
42103
c71d15
Forty-Two Thousand One Hundred and Three in Base 15 Quindecimal
42104
c71e15
Forty-Two Thousand One Hundred and Four in Base 15 Quindecimal
42106
c72115
Forty-Two Thousand One Hundred and Six in Base 15 Quindecimal
42107
c72215
Forty-Two Thousand One Hundred and Seven in Base 15 Quindecimal
42108
c72315
Forty-Two Thousand One Hundred and Eight in Base 15 Quindecimal

Scientific Notation

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

4.2105e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0001307e07593a10315

The reciprocal of 42105 in Base 15 Quindecimal.

Palindrome?

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

The number c72015 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 one hundred and five is a composite number with 16 total factors (including 1 and itself).   See primes in Base 15 Quindecimal

A Composite

Composites have more than just these two factors.

Forty-two thousand one hundred and five is a composite number with 16 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 one hundred and five has the following 4 prime factors:

3
315
Three in Base 15 Quindecimal
5
515
Five in Base 15 Quindecimal
7
715
Seven in Base 15 Quindecimal
401
1bb15
Four Hundred and One in Base 15 Quindecimal

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

3151 · 5151 · 7151 · 1bb151 = c72015

Base Conversions

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