The Number

428642

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

In Base 21 Unovigesimal Is

245kb21

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-Two in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

428639
245k821
Four Hundred and Twenty-Eight Thousand Six Hundred and Thirty-Nine in Base 21 Unovigesimal
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
428643
245kc21
Four Hundred and Twenty-Eight Thousand Six Hundred and Forty-Three 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

Scientific Notation

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

4.28642e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00009b1hgkbea72e21

The reciprocal of 428642 in Base 21 Unovigesimal.

Palindrome?

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

The number 245kb21 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-two is a composite number with 8 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-two is a composite number with 8 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-two has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
107
5221
One Hundred and Seven in Base 21 Unovigesimal
2003
4b821
Two Thousand and Three in Base 21 Unovigesimal

Prime Factorization

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

2211 · 52211 · 4b8211 = 245kb21

Base Conversions

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