The Number

20640

Twenty Thousand Six Hundred and Forty

In Base 28 Octovigesimal Is

q9428

The numbers with a 28 subscript use Base 28 Octovigesimal notation.

For more familiar numbers: See Twenty Thousand Six Hundred and Forty in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

20637
q9128
Twenty Thousand Six Hundred and Thirty-Seven in Base 28 Octovigesimal
20638
q9228
Twenty Thousand Six Hundred and Thirty-Eight in Base 28 Octovigesimal
20639
q9328
Twenty Thousand Six Hundred and Thirty-Nine in Base 28 Octovigesimal
20641
q9528
Twenty Thousand Six Hundred and Forty-One in Base 28 Octovigesimal
20642
q9628
Twenty Thousand Six Hundred and Forty-Two in Base 28 Octovigesimal
20643
q9728
Twenty Thousand Six Hundred and Forty-Three in Base 28 Octovigesimal

Scientific Notation

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

2.0640e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0011lnb4alccnn28

The reciprocal of 20640 in Base 28 Octovigesimal.

Palindrome?

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

The number q9428 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 six hundred and forty is a composite number with 48 total factors (including 1 and itself).   See primes in Base 28 Octovigesimal

A Composite

Composites have more than just these two factors.

Twenty thousand six hundred and forty is a composite number with 48 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 six hundred and forty has the following 4 prime factors:

2
228
Two in Base 28 Octovigesimal
3
328
Three in Base 28 Octovigesimal
5
528
Five in Base 28 Octovigesimal
43
1f28
Forty-Three in Base 28 Octovigesimal

Prime Factorization

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

2285 · 3281 · 5281 · 1f281 = q9428

Base Conversions

The number twenty thousand six hundred and forty in 35 different bases