The Number

42809

Forty-Two Thousand Eight Hundred and Nine

In Base 11 Undecimal Is

2a18811

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

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

Nearby Numbers

Positive, nonzero integers within three units

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
42810
2a18911
Forty-Two Thousand Eight Hundred and Ten in Base 11 Undecimal
42811
2a18a11
Forty-Two Thousand Eight Hundred and Eleven in Base 11 Undecimal
42812
2a19011
Forty-Two Thousand Eight Hundred and Twelve in Base 11 Undecimal

Scientific Notation

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

4.2809e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000038423720732419a711

The reciprocal of 42809 in Base 11 Undecimal.

Palindrome?

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

The number 2a18811 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 nine 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 nine 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 nine has the following 3 prime factors:

13
1211
Thirteen in Base 11 Undecimal
37
3411
Thirty-Seven in Base 11 Undecimal
89
8111
Eighty-Nine in Base 11 Undecimal

Prime Factorization

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

12111 · 34111 · 81111 = 2a18811

Base Conversions

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