The Number

20805

Twenty Thousand Eight Hundred and Five

In Base 9 Nonary Is

314769

The numbers with a 9 subscript use Base 9 Nonary notation.

For more familiar numbers: See Twenty Thousand Eight Hundred and Five in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

20802
314739
Twenty Thousand Eight Hundred and Two in Base 9 Nonary
20803
314749
Twenty Thousand Eight Hundred and Three in Base 9 Nonary
20804
314759
Twenty Thousand Eight Hundred and Four in Base 9 Nonary
20806
314779
Twenty Thousand Eight Hundred and Six in Base 9 Nonary
20807
314789
Twenty Thousand Eight Hundred and Seven in Base 9 Nonary
20808
314809
Twenty Thousand Eight Hundred and Eight in Base 9 Nonary

Scientific Notation

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

2.0805e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00002748045176564228859

The reciprocal of 20805 in Base 9 Nonary.

Palindrome?

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

The number 314769 is not a palindrome.

Not A Prime Number

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

Twenty thousand eight hundred and five is a composite number with 16 total factors (including 1 and itself).   See primes in Base 9 Nonary

A Composite

Composites have more than just these two factors.

Twenty thousand eight 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 twenty thousand eight hundred and five has the following 4 prime factors:

3
39
Three in Base 9 Nonary
5
59
Five in Base 9 Nonary
19
219
Nineteen in Base 9 Nonary
73
819
Seventy-Three in Base 9 Nonary

Prime Factorization

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

391 · 591 · 2191 · 8191 = 314769

Base Conversions

The number twenty thousand eight hundred and five in 35 different bases