The Number

428643

Four Hundred and Twenty-Eight Thousand Six Hundred and Forty-Three

In Base 21 Unovigesimal Is

245kc21

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

428640
245k921
Four Hundred and Twenty-Eight Thousand Six Hundred and Forty in Base 21 Unovigesimal
428641
245ka21
Four Hundred and Twenty-Eight Thousand Six Hundred and Forty-One in Base 21 Unovigesimal
428642
245kb21
Four Hundred and Twenty-Eight Thousand Six Hundred and Forty-Two in Base 21 Unovigesimal
428644
245kd21
Four Hundred and Twenty-Eight Thousand Six Hundred and Forty-Four in Base 21 Unovigesimal
428645
245ke21
Four Hundred and Twenty-Eight Thousand Six Hundred and Forty-Five in Base 21 Unovigesimal
428646
245kf21
Four Hundred and Twenty-Eight Thousand Six Hundred and Forty-Six in Base 21 Unovigesimal

Scientific Notation

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

4.28643e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00009b1hcdg57ja821

The reciprocal of 428643 in Base 21 Unovigesimal.

Palindrome?

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

The number 245kc21 is not a palindrome.

Not A Prime Number

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

Four hundred and twenty-eight thousand six hundred and forty-three is a composite number with 12 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Four hundred and twenty-eight thousand six hundred and forty-three is a composite number with 12 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 four hundred and twenty-eight thousand six hundred and forty-three has the following 3 prime factors:

3
321
Three in Base 21 Unovigesimal
97
4d21
Ninety-Seven in Base 21 Unovigesimal
491
12821
Four Hundred and Ninety-One in Base 21 Unovigesimal

Prime Factorization

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

3212 · 4d211 · 128211 = 245kc21

Base Conversions

The number four hundred and twenty-eight thousand six hundred and forty-three in 35 different bases