The Number

640021

Six Hundred and Forty Thousand and Twenty-One

In Base 28 Octovigesimal Is

1149p28

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

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

Nearby Numbers

Positive, nonzero integers within three units

640018
1149m28
Six Hundred and Forty Thousand and Eightteen in Base 28 Octovigesimal
640019
1149n28
Six Hundred and Forty Thousand and Nineteen in Base 28 Octovigesimal
640020
1149o28
Six Hundred and Forty Thousand and Twenty in Base 28 Octovigesimal
640022
1149q28
Six Hundred and Forty Thousand and Twenty-Two in Base 28 Octovigesimal
640023
1149r28
Six Hundred and Forty Thousand and Twenty-Three in Base 28 Octovigesimal
640024
114a028
Six Hundred and Forty Thousand and Twenty-Four in Base 28 Octovigesimal

Scientific Notation

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

6.40021e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000qoq072geq8928

The reciprocal of 640021 in Base 28 Octovigesimal.

Palindrome?

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

The number 1149p28 is not a palindrome.

Not A Prime Number

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

Six hundred and forty thousand and twenty-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 28 Octovigesimal

A Composite

Composites have more than just these two factors.

Six hundred and forty thousand and twenty-one is a composite number with 4 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 six hundred and forty thousand and twenty-one has the following 2 prime factors:

23
n28
Twenty-Three in Base 28 Octovigesimal
27827
17dn28
Twenty-Seven Thousand Eight Hundred and Twenty-Seven in Base 28 Octovigesimal

Prime Factorization

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

n281 · 17dn281 = 1149p28

Base Conversions

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