The Number

28990

Twenty-Eight Thousand Nine Hundred and Ninety

In Base 20 Vigesimal Is

3c9a20

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

For more familiar numbers: See Twenty-Eight Thousand Nine Hundred and Ninety in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

28987
3c9720
Twenty-Eight Thousand Nine Hundred and Eighty-Seven in Base 20 Vigesimal
28988
3c9820
Twenty-Eight Thousand Nine Hundred and Eighty-Eight in Base 20 Vigesimal
28989
3c9920
Twenty-Eight Thousand Nine Hundred and Eighty-Nine in Base 20 Vigesimal
28991
3c9b20
Twenty-Eight Thousand Nine Hundred and Ninety-One in Base 20 Vigesimal
28992
3c9c20
Twenty-Eight Thousand Nine Hundred and Ninety-Two in Base 20 Vigesimal
28993
3c9d20
Twenty-Eight Thousand Nine Hundred and Ninety-Three in Base 20 Vigesimal

Scientific Notation

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

2.8990e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0005a7d32a1e9hh620

The reciprocal of 28990 in Base 20 Vigesimal.

Palindrome?

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

The number 3c9a20 is not a palindrome.

Not A Prime Number

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

Twenty-eight thousand nine hundred and ninety is a composite number with 16 total factors (including 1 and itself).   See primes in Base 20 Vigesimal

A Composite

Composites have more than just these two factors.

Twenty-eight thousand nine hundred and ninety is a composite number with 16 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-eight thousand nine hundred and ninety has the following 4 prime factors:

2
220
Two in Base 20 Vigesimal
5
520
Five in Base 20 Vigesimal
13
d20
Thirteen in Base 20 Vigesimal
223
b320
Two Hundred and Twenty-Three in Base 20 Vigesimal

Prime Factorization

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

2201 · 5201 · d201 · b3201 = 3c9a20

Base Conversions

The number twenty-eight thousand nine hundred and ninety in 35 different bases