The Number

640625

Six Hundred and Forty Thousand Six Hundred and Twenty-Five

In Base 20 Vigesimal Is

401b520

The numbers with a 20 subscript use Base 20 Vigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

640622
401b220
Six Hundred and Forty Thousand Six Hundred and Twenty-Two in Base 20 Vigesimal
640623
401b320
Six Hundred and Forty Thousand Six Hundred and Twenty-Three in Base 20 Vigesimal
640624
401b420
Six Hundred and Forty Thousand Six Hundred and Twenty-Four in Base 20 Vigesimal
640626
401b620
Six Hundred and Forty Thousand Six Hundred and Twenty-Six in Base 20 Vigesimal
640627
401b720
Six Hundred and Forty Thousand Six Hundred and Twenty-Seven in Base 20 Vigesimal
640628
401b820
Six Hundred and Forty Thousand Six Hundred and Twenty-Eight in Base 20 Vigesimal

Scientific Notation

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

6.40625e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00004ji0ja4hb47fi20

The reciprocal of 640625 in Base 20 Vigesimal.

Palindrome?

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

The number 401b520 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 six hundred and twenty-five is a composite number with 14 total factors (including 1 and itself).   See primes in Base 20 Vigesimal

A Composite

Composites have more than just these two factors.

Six hundred and forty thousand six hundred and twenty-five is a composite number with 14 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 six hundred and twenty-five has the following 2 prime factors:

5
520
Five in Base 20 Vigesimal
41
2120
Forty-One in Base 20 Vigesimal

Prime Factorization

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

5206 · 21201 = 401b520

Base Conversions

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