The Number

42805

Forty-Two Thousand Eight Hundred and Five

In Base 11 Undecimal Is

2a18411

The numbers with a 11 subscript use Base 11 Undecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

42802
2a18111
Forty-Two Thousand Eight Hundred and Two in Base 11 Undecimal
42803
2a18211
Forty-Two Thousand Eight Hundred and Three in Base 11 Undecimal
42804
2a18311
Forty-Two Thousand Eight Hundred and Four in Base 11 Undecimal
42806
2a18511
Forty-Two Thousand Eight Hundred and Six in Base 11 Undecimal
42807
2a18611
Forty-Two Thousand Eight Hundred and Seven in Base 11 Undecimal
42808
2a18711
Forty-Two Thousand Eight Hundred and Eight in Base 11 Undecimal

Scientific Notation

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

4.2805e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000384288895363444511

The reciprocal of 42805 in Base 11 Undecimal.

Palindrome?

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

The number 2a18411 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 five is a composite number with 8 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

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

5
511
Five in Base 11 Undecimal
7
711
Seven in Base 11 Undecimal
1223
a1211
One Thousand Two Hundred and Twenty-Three in Base 11 Undecimal

Prime Factorization

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

5111 · 7111 · a12111 = 2a18411

Base Conversions

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